octave-nkf: liboctave/CSparse.cc annotate

annotate liboctave/CSparse.cc @ 10550:c48b7048e720

style fixes

author	John W. Eaton <jwe@octave.org>
date	Fri, 23 Apr 2010 14:43:41 -0400
parents	4d1fc073fbb7
children	c2041adcf234

rev	line source
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1 /*
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8910 diff changeset	3 Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 David Bateman
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	4 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Andy Adler
10521 4d1fc073fbb7 add some missing copyright stmts Jaroslav Hajek <highegg@gmail.com> parents: 10515 diff changeset	5 Copyright (C) 2010 VZLU Prague
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	6
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	7 This file is part of Octave.
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	8
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	9 Octave is free software; you can redistribute it and/or modify it
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	10 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	11 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	12 option) any later version.
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	13
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	14 Octave is distributed in the hope that it will be useful, but WITHOUT
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	17 for more details.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	18
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	19 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	20 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	21 <http://www.gnu.org/licenses/>.
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	22
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	23 */
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	24
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	25 #ifdef HAVE_CONFIG_H
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	26 #include <config.h>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	27 #endif
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	28
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	29 #include <cfloat>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	30
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	31 #include <iostream>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	32 #include <vector>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	33
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	34 #include "quit.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	35 #include "lo-ieee.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	36 #include "lo-mappers.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	37 #include "f77-fcn.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	38 #include "dRowVector.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 8366 diff changeset	39 #include "oct-locbuf.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	40
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	41 #include "dDiagMatrix.h"
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	42 #include "CDiagMatrix.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	43 #include "CSparse.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	44 #include "boolSparse.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	45 #include "dSparse.h"
7602 7bfaa9611558 Rewrite sparse mappers in terms of a functor template function David Bateman <dbateman@free.fr> parents: 7520 diff changeset	46 #include "functor.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	47 #include "oct-spparms.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	48 #include "SparseCmplxLU.h"
5451 ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe] jwe parents: 5429 diff changeset	49 #include "oct-sparse.h"
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	50 #include "sparse-util.h"
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	51 #include "SparseCmplxCHOL.h"
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5604 diff changeset	52 #include "SparseCmplxQR.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	53
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	54 #include "Sparse-diag-op-defs.h"
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	55
8968 91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	56 #include "Sparse-perm-op-defs.h"
9825 7483fe200fab narrow complex values with negative zero imaginary parts Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	57 #include "mx-inlines.cc"
8968 91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	58
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	59 // Define whether to use a basic QR solver or one that uses a Dulmange
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	60 // Mendelsohn factorization to seperate the problem into under-determined,
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	61 // well-determined and over-determined parts and solves them seperately
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	62 #ifndef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	63 #include "sparse-dmsolve.cc"
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	64 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	65
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	66 // Fortran functions we call.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	67 extern "C"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	68 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	69 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	70 F77_FUNC (zgbtrf, ZGBTRF) (const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	71 const octave_idx_type&, Complex, const octave_idx_type&, octave_idx_type, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	72
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	73 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	74 F77_FUNC (zgbtrs, ZGBTRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	75 const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	76 const Complex*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	77 const octave_idx_type, Complex, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	78 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	79
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	80 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	81 F77_FUNC (zgbcon, ZGBCON) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	82 const octave_idx_type&, const octave_idx_type&, Complex*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	83 const octave_idx_type&, const octave_idx_type*, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	84 double&, Complex, double, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	85 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	86
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	87 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	88 F77_FUNC (zpbtrf, ZPBTRF) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	89 const octave_idx_type&, Complex*, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	90 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	91
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	92 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	93 F77_FUNC (zpbtrs, ZPBTRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	94 const octave_idx_type&, const octave_idx_type&, Complex*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	95 Complex*, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	96 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	97
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	98 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	99 F77_FUNC (zpbcon, ZPBCON) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	100 const octave_idx_type&, Complex*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	101 const double&, double&, Complex, double, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	102 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	103
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	104 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	105 F77_FUNC (zgttrf, ZGTTRF) (const octave_idx_type&, Complex, Complex, Complex*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	106 Complex, octave_idx_type, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	107
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	108 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	109 F77_FUNC (zgttrs, ZGTTRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	110 const octave_idx_type&, const Complex, const Complex,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	111 const Complex, const Complex, const octave_idx_type*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	112 Complex *, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	113 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	114
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	115 F77_RET_T
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	116 F77_FUNC (zptsv, ZPTSV) (const octave_idx_type&, const octave_idx_type&, double, Complex,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	117 Complex*, const octave_idx_type&, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	118
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	119 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	120 F77_FUNC (zgtsv, ZGTSV) (const octave_idx_type&, const octave_idx_type&, Complex, Complex,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	121 Complex, Complex, const octave_idx_type&, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	122 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	123
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	124 SparseComplexMatrix::SparseComplexMatrix (const SparseMatrix& a)
10515 189274f6c7c4 omissions from last patch Jaroslav Hajek <highegg@gmail.com> parents: 10431 diff changeset	125 : MSparse<Complex> (a)
189274f6c7c4 omissions from last patch Jaroslav Hajek <highegg@gmail.com> parents: 10431 diff changeset	126 {
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	127 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	128
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	129 SparseComplexMatrix::SparseComplexMatrix (const SparseBoolMatrix& a)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	130 : MSparse<Complex> (a.rows (), a.cols (), a.nnz ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	131 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	132 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	133 octave_idx_type nz = a.nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	134
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	135 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	136 cidx (i) = a.cidx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	137
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	138 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	139 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	140 data (i) = Complex (a.data (i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	141 ridx (i) = a.ridx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	142 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	143 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	144
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	145 SparseComplexMatrix::SparseComplexMatrix (const ComplexDiagMatrix& a)
8910 6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	146 : MSparse<Complex> (a.rows (), a.cols (), a.length ())
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	147 {
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	148 octave_idx_type j = 0, l = a.length ();
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	149 for (octave_idx_type i = 0; i < l; i++)
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	150 {
8910 6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	151 cidx (i) = j;
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	152 if (a(i, i) != 0.0)
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	153 {
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	154 data (j) = a(i, i);
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	155 ridx (j) = i;
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	156 j++;
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	157 }
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	158 }
8910 6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	159 for (octave_idx_type i = l; i <= a.cols (); i++)
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	160 cidx(i) = j;
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	161 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	162 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	163 SparseComplexMatrix::operator == (const SparseComplexMatrix& a) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	164 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	165 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	166 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	167 octave_idx_type nz = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	168 octave_idx_type nr_a = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	169 octave_idx_type nc_a = a.cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	170 octave_idx_type nz_a = a.nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	171
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	172 if (nr != nr_a \|\| nc != nc_a \|\| nz != nz_a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	173 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	174
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	175 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	176 if (cidx(i) != a.cidx(i))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	177 return false;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	178
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	179 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	180 if (data(i) != a.data(i) \|\| ridx(i) != a.ridx(i))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	181 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	182
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	183 return true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	184 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	185
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	186 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	187 SparseComplexMatrix::operator != (const SparseComplexMatrix& a) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	188 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	189 return !(*this == a);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	190 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	191
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	192 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	193 SparseComplexMatrix::is_hermitian (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	194 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	195 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	196 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	197
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6185 diff changeset	198 if (nr == nc && nr > 0)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	199 {
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6185 diff changeset	200 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	201 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	202 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	203 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	204 octave_idx_type ri = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	205
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	206 if (ri != j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	207 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	208 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	209
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	210 for (octave_idx_type k = cidx(ri); k < cidx(ri+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	211 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	212 if (ridx(k) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	213 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	214 if (data(i) == conj(data(k)))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	215 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	216 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	217 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	218 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	219
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	220 if (! found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	221 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	222 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	223 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	224 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	225
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	226 return true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	227 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	228
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	229 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	230 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	231
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	232 static const Complex Complex_NaN_result (octave_NaN, octave_NaN);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	233
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	234 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	235 SparseComplexMatrix::max (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	236 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	237 Array<octave_idx_type> dummy_idx;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	238 return max (dummy_idx, dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	239 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	240
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	241 SparseComplexMatrix
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	242 SparseComplexMatrix::max (Array<octave_idx_type>& idx_arg, int dim) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	243 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	244 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	245 dim_vector dv = dims ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	246
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	247 if (dv.numel () == 0 \|\| dim >= dv.length ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	248 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	249
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	250 if (dim < 0)
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	251 dim = dv.first_non_singleton ();
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	252
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	253 octave_idx_type nr = dv(0);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	254 octave_idx_type nc = dv(1);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	255
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	256 if (dim == 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	257 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	258 idx_arg.clear (1, nc);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	259 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	260 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	261 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	262 Complex tmp_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	263 double abs_max = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	264 octave_idx_type idx_j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	265 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	266 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	267 if (ridx(i) != idx_j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	268 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	269 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	270 idx_j++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	271 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	272
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	273 if (idx_j != nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	274 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	275 tmp_max = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	276 abs_max = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	277 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	278
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	279 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	280 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	281 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	282
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	283 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	284 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	285
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	286 double abs_tmp = std::abs (tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	287
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	288 if (xisnan (abs_max) \|\| abs_tmp > abs_max)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	289 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	290 idx_j = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	291 tmp_max = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	292 abs_max = abs_tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	293 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	294 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	295
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	296 idx_arg.elem (j) = xisnan (tmp_max) ? 0 : idx_j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	297 if (abs_max != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	298 nel++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	299 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	300
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	301 result = SparseComplexMatrix (1, nc, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	302
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	303 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	304 result.xcidx (0) = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	305 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	306 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	307 Complex tmp = elem (idx_arg(j), j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	308 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	309 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	310 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	311 result.xridx (ii++) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	312 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	313 result.xcidx (j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	314 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	315 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	316 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	317 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	318 idx_arg.resize (nr, 1, 0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	319
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	320 for (octave_idx_type i = cidx(0); i < cidx(1); i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	321 idx_arg.elem(ridx(i)) = -1;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	322
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	323 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	324 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	325 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	326 if (idx_arg.elem(i) != -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	327 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	328 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	329 for (octave_idx_type k = cidx(j); k < cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	330 if (ridx(k) == i)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	331 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	332 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	333 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	334 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	335
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	336 if (!found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	337 idx_arg.elem(i) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	338
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	339 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	340
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	341 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	342 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	343 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	344 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	345 octave_idx_type ir = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	346 octave_idx_type ix = idx_arg.elem (ir);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	347 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	348
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	349 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	350 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	351 else if (ix == -1 \|\| std::abs(tmp) > std::abs(elem (ir, ix)))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	352 idx_arg.elem (ir) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	353 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	354 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	355
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	356 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	357 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	358 if (idx_arg.elem(j) == -1 \|\| elem (j, idx_arg.elem (j)) != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	359 nel++;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	360
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	361 result = SparseComplexMatrix (nr, 1, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	362
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	363 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	364 result.xcidx (0) = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	365 result.xcidx (1) = nel;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	366 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	367 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	368 if (idx_arg(j) == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	369 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	370 idx_arg(j) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	371 result.xdata (ii) = Complex_NaN_result;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	372 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	373 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	374 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	375 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	376 Complex tmp = elem (j, idx_arg(j));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	377 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	378 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	379 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	380 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	381 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	382 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	383 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	384 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	385
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	386 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	387 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	388
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	389 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	390 SparseComplexMatrix::min (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	391 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	392 Array<octave_idx_type> dummy_idx;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	393 return min (dummy_idx, dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	394 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	395
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	396 SparseComplexMatrix
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	397 SparseComplexMatrix::min (Array<octave_idx_type>& idx_arg, int dim) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	398 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	399 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	400 dim_vector dv = dims ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	401
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	402 if (dv.numel () == 0 \|\| dim >= dv.length ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	403 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	404
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	405 if (dim < 0)
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	406 dim = dv.first_non_singleton ();
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	407
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	408 octave_idx_type nr = dv(0);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	409 octave_idx_type nc = dv(1);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	410
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	411 if (dim == 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	412 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	413 idx_arg.clear (1, nc);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	414 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	415 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	416 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	417 Complex tmp_min;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	418 double abs_min = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	419 octave_idx_type idx_j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	420 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	421 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	422 if (ridx(i) != idx_j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	423 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	424 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	425 idx_j++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	426 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	427
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	428 if (idx_j != nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	429 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	430 tmp_min = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	431 abs_min = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	432 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	433
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	434 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	435 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	436 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	437
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	438 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	439 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	440
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	441 double abs_tmp = std::abs (tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	442
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	443 if (xisnan (abs_min) \|\| abs_tmp < abs_min)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	444 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	445 idx_j = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	446 tmp_min = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	447 abs_min = abs_tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	448 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	449 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	450
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	451 idx_arg.elem (j) = xisnan (tmp_min) ? 0 : idx_j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	452 if (abs_min != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	453 nel++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	454 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	455
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	456 result = SparseComplexMatrix (1, nc, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	457
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	458 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	459 result.xcidx (0) = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	460 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	461 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	462 Complex tmp = elem (idx_arg(j), j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	463 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	464 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	465 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	466 result.xridx (ii++) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	467 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	468 result.xcidx (j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	469 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	470 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	471 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	472 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	473 idx_arg.resize (nr, 1, 0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	474
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	475 for (octave_idx_type i = cidx(0); i < cidx(1); i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	476 idx_arg.elem(ridx(i)) = -1;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	477
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	478 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	479 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	480 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	481 if (idx_arg.elem(i) != -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	482 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	483 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	484 for (octave_idx_type k = cidx(j); k < cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	485 if (ridx(k) == i)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	486 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	487 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	488 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	489 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	490
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	491 if (!found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	492 idx_arg.elem(i) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	493
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	494 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	495
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	496 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	497 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	498 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	499 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	500 octave_idx_type ir = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	501 octave_idx_type ix = idx_arg.elem (ir);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	502 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	503
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	504 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	505 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	506 else if (ix == -1 \|\| std::abs(tmp) < std::abs(elem (ir, ix)))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	507 idx_arg.elem (ir) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	508 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	509 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	510
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	511 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	512 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	513 if (idx_arg.elem(j) == -1 \|\| elem (j, idx_arg.elem (j)) != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	514 nel++;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	515
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	516 result = SparseComplexMatrix (nr, 1, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	517
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	518 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	519 result.xcidx (0) = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	520 result.xcidx (1) = nel;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	521 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	522 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	523 if (idx_arg(j) == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	524 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	525 idx_arg(j) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	526 result.xdata (ii) = Complex_NaN_result;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	527 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	528 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	529 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	530 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	531 Complex tmp = elem (j, idx_arg(j));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	532 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	533 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	534 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	535 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	536 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	537 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	538 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	539 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	540
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	541 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	542 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	543
8303 b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	544 ComplexRowVector
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	545 SparseComplexMatrix::row (octave_idx_type i) const
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	546 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	547 octave_idx_type nc = columns ();
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	548 ComplexRowVector retval (nc, 0);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	549
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	550 for (octave_idx_type j = 0; j < nc; j++)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	551 for (octave_idx_type k = cidx (j); k < cidx (j+1); k++)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	552 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	553 if (ridx (k) == i)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	554 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	555 retval(j) = data (k);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	556 break;
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	557 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	558 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	559
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	560 return retval;
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	561 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	562
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	563 ComplexColumnVector
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	564 SparseComplexMatrix::column (octave_idx_type i) const
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	565 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	566 octave_idx_type nr = rows ();
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	567 ComplexColumnVector retval (nr);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	568
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	569 for (octave_idx_type k = cidx (i); k < cidx (i+1); k++)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	570 retval(ridx (k)) = data (k);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	571
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	572 return retval;
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	573 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	574
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	575 // destructive insert/delete/reorder operations
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	576
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	577 SparseComplexMatrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	578 SparseComplexMatrix::insert (const SparseMatrix& a, octave_idx_type r, octave_idx_type c)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	579 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	580 SparseComplexMatrix tmp (a);
6060 ced23ae2b5cc [project @ 2006-10-18 02:56:22 by jwe] jwe parents: 5893 diff changeset	581 return insert (tmp /a/, r, c);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	582 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	583
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	584 SparseComplexMatrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	585 SparseComplexMatrix::insert (const SparseComplexMatrix& a, octave_idx_type r, octave_idx_type c)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	586 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	587 MSparse<Complex>::insert (a, r, c);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	588 return *this;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	589 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	590
6823 9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	591 SparseComplexMatrix&
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	592 SparseComplexMatrix::insert (const SparseMatrix& a, const Array<octave_idx_type>& indx)
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	593 {
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	594 SparseComplexMatrix tmp (a);
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	595 return insert (tmp /a/, indx);
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	596 }
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	597
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	598 SparseComplexMatrix&
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	599 SparseComplexMatrix::insert (const SparseComplexMatrix& a, const Array<octave_idx_type>& indx)
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	600 {
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	601 MSparse<Complex>::insert (a, indx);
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	602 return *this;
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	603 }
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	604
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	605 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	606 SparseComplexMatrix::concat (const SparseComplexMatrix& rb,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	607 const Array<octave_idx_type>& ra_idx)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	608 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	609 // Don't use numel to avoid all possiblity of an overflow
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	610 if (rb.rows () > 0 && rb.cols () > 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	611 insert (rb, ra_idx(0), ra_idx(1));
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	612 return *this;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	613 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	614
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	615 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	616 SparseComplexMatrix::concat (const SparseMatrix& rb, const Array<octave_idx_type>& ra_idx)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	617 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	618 SparseComplexMatrix tmp (rb);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	619 if (rb.rows () > 0 && rb.cols () > 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	620 insert (tmp, ra_idx(0), ra_idx(1));
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	621 return *this;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	622 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	623
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	624 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	625 SparseComplexMatrix::matrix_value (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	626 {
10431 5dd7a7bf4950 simplify sparse->full conversions in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 10421 diff changeset	627 return Sparse<Complex>::array_value ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	628 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	629
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	630 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	631 SparseComplexMatrix::hermitian (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	632 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	633 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	634 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	635 octave_idx_type nz = nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	636 SparseComplexMatrix retval (nc, nr, nz);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	637
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	638 for (octave_idx_type i = 0; i < nz; i++)
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	639 retval.xcidx (ridx (i) + 1)++;
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	640 // retval.xcidx[1:nr] holds the row degrees for rows 0:(nr-1)
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	641 nz = 0;
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	642 for (octave_idx_type i = 1; i <= nr; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	643 {
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	644 const octave_idx_type tmp = retval.xcidx (i);
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	645 retval.xcidx (i) = nz;
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	646 nz += tmp;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	647 }
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	648 // retval.xcidx[1:nr] holds row entry start offsets for rows 0:(nr-1)
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	649
69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	650 for (octave_idx_type j = 0; j < nc; j++)
69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	651 for (octave_idx_type k = cidx(j); k < cidx(j+1); k++)
69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	652 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	653 octave_idx_type q = retval.xcidx (ridx (k) + 1)++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	654 retval.xridx (q) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	655 retval.xdata (q) = conj (data (k));
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	656 }
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	657 assert (nnz () == retval.xcidx (nr));
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	658 // retval.xcidx[1:nr] holds row entry end offsets for rows 0:(nr-1)
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	659 // and retval.xcidx[0:(nr-1)] holds their row entry start offsets
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	660
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	661 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	662 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	663
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	664 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	665 conj (const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	666 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	667 octave_idx_type nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	668 octave_idx_type nc = a.cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	669 octave_idx_type nz = a.nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	670 SparseComplexMatrix retval (nc, nr, nz);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	671
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	672 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	673 retval.cidx (i) = a.cidx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	674
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	675 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	676 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	677 retval.data (i) = conj (a.data (i));
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	678 retval.ridx (i) = a.ridx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	679 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	680
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	681 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	682 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	683
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	684 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	685 SparseComplexMatrix::inverse (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	686 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	687 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	688 double rcond;
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	689 MatrixType mattype (*this);
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	690 return inverse (mattype, info, rcond, 0, 0);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	691 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	692
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	693 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	694 SparseComplexMatrix::inverse (MatrixType& mattype) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	695 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	696 octave_idx_type info;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	697 double rcond;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	698 return inverse (mattype, info, rcond, 0, 0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	699 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	700
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	701 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	702 SparseComplexMatrix::inverse (MatrixType& mattype, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	703 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	704 double rcond;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	705 return inverse (mattype, info, rcond, 0, 0);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	706 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	707
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	708 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	709 SparseComplexMatrix::dinverse (MatrixType &mattyp, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	710 double& rcond, const bool,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	711 const bool calccond) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	712 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	713 SparseComplexMatrix retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	714
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	715 octave_idx_type nr = rows ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	716 octave_idx_type nc = cols ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	717 info = 0;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	718
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	719 if (nr == 0 \|\| nc == 0 \|\| nr != nc)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	720 (*current_liboctave_error_handler) ("inverse requires square matrix");
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	721 else
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	722 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	723 // Print spparms("spumoni") info if requested
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	724 int typ = mattyp.type ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	725 mattyp.info ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	726
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	727 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	728 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	729 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	730 if (typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	731 retval = transpose();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	732 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	733 retval = *this;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	734
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	735 // Force make_unique to be called
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	736 Complex *v = retval.data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	737
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	738 if (calccond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	739 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	740 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	741 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	742 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	743 double tmp = std::abs(v[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	744 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	745 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	746 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	747 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	748 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	749 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	750 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	751
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	752 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	753 v[i] = 1.0 / v[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	754 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	755 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	756 (*current_liboctave_error_handler) ("incorrect matrix type");
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	757 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	758
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	759 return retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	760 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	761
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	762 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	763 SparseComplexMatrix::tinverse (MatrixType &mattyp, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	764 double& rcond, const bool,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	765 const bool calccond) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	766 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	767 SparseComplexMatrix retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	768
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	769 octave_idx_type nr = rows ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	770 octave_idx_type nc = cols ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	771 info = 0;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	772
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	773 if (nr == 0 \|\| nc == 0 \|\| nr != nc)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	774 (*current_liboctave_error_handler) ("inverse requires square matrix");
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	775 else
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	776 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	777 // Print spparms("spumoni") info if requested
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	778 int typ = mattyp.type ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	779 mattyp.info ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	780
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	781 if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	782 typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	783 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	784 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	785 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	786
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	787 if (calccond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	788 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	789 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	790 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	791 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	792 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	793 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	794 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	795 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	796 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	797 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	798 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	799
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	800 if (typ == MatrixType::Upper \|\| typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	801 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	802 octave_idx_type nz = nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	803 octave_idx_type cx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	804 octave_idx_type nz2 = nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	805 retval = SparseComplexMatrix (nr, nc, nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	806
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	807 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	808 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	809 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	810 // place the 1 in the identity position
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	811 octave_idx_type cx_colstart = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	812
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	813 if (cx == nz2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	814 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	815 nz2 *= 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	816 retval.change_capacity (nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	817 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	818
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	819 retval.xcidx(i) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	820 retval.xridx(cx) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	821 retval.xdata(cx) = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	822 cx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	823
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	824 // iterate accross columns of input matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	825 for (octave_idx_type j = i+1; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	826 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	827 Complex v = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	828 // iterate to calculate sum
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	829 octave_idx_type colXp = retval.xcidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	830 octave_idx_type colUp = cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	831 octave_idx_type rpX, rpU;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	832
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	833 if (cidx(j) == cidx(j+1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	834 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	835 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	836 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	837 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	838 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	839
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	840 do
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	841 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	842 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	843 rpX = retval.xridx(colXp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	844 rpU = ridx(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	845
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	846 if (rpX < rpU)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	847 colXp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	848 else if (rpX > rpU)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	849 colUp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	850 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	851 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	852 v -= retval.xdata(colXp) * data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	853 colXp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	854 colUp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	855 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	856 } while ((rpX<j) && (rpU<j) &&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	857 (colXp<cx) && (colUp<nz));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	858
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	859
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	860 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	861 if (typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	862 colUp = cidx(j+1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	863 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	864 colUp = cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	865 Complex pivot = data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	866 if (pivot == 0. \|\| ridx(colUp) != j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	867 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	868 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	869 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	870 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	871 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	872
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	873 if (v != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	874 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	875 if (cx == nz2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	876 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	877 nz2 *= 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	878 retval.change_capacity (nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	879 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	880
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	881 retval.xridx(cx) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	882 retval.xdata(cx) = v / pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	883 cx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	884 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	885 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	886
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	887 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	888 octave_idx_type colUp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	889 if (typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	890 colUp = cidx(i+1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	891 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	892 colUp = cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	893 Complex pivot = data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	894 if (pivot == 0. \|\| ridx(colUp) != i)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	895 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	896 (*current_liboctave_error_handler) ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	897 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	898 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	899
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	900 if (pivot != 1.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	901 for (octave_idx_type j = cx_colstart; j < cx; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	902 retval.xdata(j) /= pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	903 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	904 retval.xcidx(nr) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	905 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	906 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	907 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	908 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	909 octave_idx_type nz = nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	910 octave_idx_type cx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	911 octave_idx_type nz2 = nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	912 retval = SparseComplexMatrix (nr, nc, nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	913
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	914 OCTAVE_LOCAL_BUFFER (Complex, work, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	915 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	916
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	917 octave_idx_type *perm = mattyp.triangular_perm();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	918 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	919 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	920 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	921 rperm[perm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	922 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	923 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	924 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	925 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	926 rperm[i] = perm[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	927 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	928 perm[rperm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	929 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	930
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	931 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	932 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	933 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	934 octave_idx_type iidx = rperm[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	935
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	936 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	937 work[j] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	938
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	939 // place the 1 in the identity position
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	940 work[iidx] = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	941
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	942 // iterate accross columns of input matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	943 for (octave_idx_type j = iidx+1; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	944 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	945 Complex v = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	946 octave_idx_type jidx = perm[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	947 // iterate to calculate sum
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	948 for (octave_idx_type k = cidx(jidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	949 k < cidx(jidx+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	950 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	951 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	952 v -= work[ridx(k)] * data(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	953 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	954
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	955 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	956 Complex pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	957 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	958 pivot = data(cidx(jidx+1) - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	959 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	960 pivot = data(cidx(jidx));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	961 if (pivot == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	962 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	963 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	964 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	965 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	966 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	967
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	968 work[j] = v / pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	969 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	970
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	971 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	972 octave_idx_type colUp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	973 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	974 colUp = cidx(perm[iidx]+1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	975 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	976 colUp = cidx(perm[iidx]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	977
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	978 Complex pivot = data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	979 if (pivot == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	980 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	981 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	982 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	983 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	984 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	985
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	986 octave_idx_type new_cx = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	987 for (octave_idx_type j = iidx; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	988 if (work[j] != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	989 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	990 new_cx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	991 if (pivot != 1.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	992 work[j] /= pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	993 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	994
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	995 if (cx < new_cx)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	996 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	997 nz2 = (2nz2 < new_cx ? new_cx : 2nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	998 retval.change_capacity (nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	999 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1000
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1001 retval.xcidx(i) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1002 for (octave_idx_type j = iidx; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1003 if (work[j] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1004 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1005 retval.xridx(cx) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1006 retval.xdata(cx++) = work[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1007 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1008 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1009
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1010 retval.xcidx(nr) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1011 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1012 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1013
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1014 if (calccond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1015 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1016 // Calculate the 1-norm of inverse matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1017 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1018 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1019 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1020 for (octave_idx_type i = retval.cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1021 i < retval.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1022 atmp += std::abs(retval.data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1023 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1024 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1025 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1026
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1027 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1028 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1029 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1030 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1031 (*current_liboctave_error_handler) ("incorrect matrix type");
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1032 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1033
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1034 return retval;
5876 565d0cd4d9d0 [project @ 2006-07-01 19:42:06 by dbateman] dbateman parents: 5785 diff changeset	1035
565d0cd4d9d0 [project @ 2006-07-01 19:42:06 by dbateman] dbateman parents: 5785 diff changeset	1036 inverse_singular:
565d0cd4d9d0 [project @ 2006-07-01 19:42:06 by dbateman] dbateman parents: 5785 diff changeset	1037 return SparseComplexMatrix();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1038 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1039
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1040 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1041 SparseComplexMatrix::inverse (MatrixType& mattype, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1042 double& rcond, int, int calc_cond) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1043 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1044 int typ = mattype.type (false);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1045 SparseComplexMatrix ret;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1046
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1047 if (typ == MatrixType::Unknown)
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1048 typ = mattype.type (*this);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1049
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1050 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1051 ret = dinverse (mattype, info, rcond, true, calc_cond);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1052 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1053 ret = tinverse (mattype, info, rcond, true, calc_cond).transpose();
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1054 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
6185 da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1055 {
da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1056 MatrixType newtype = mattype.transpose();
da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1057 ret = transpose().tinverse (newtype, info, rcond, true, calc_cond);
da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1058 }
6840 2f17d5556756 [project @ 2007-08-29 08:37:47 by dbateman] dbateman parents: 6823 diff changeset	1059 else
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1060 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1061 if (mattype.is_hermitian())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1062 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1063 MatrixType tmp_typ (MatrixType::Upper);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1064 SparseComplexCHOL fact (*this, info, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1065 rcond = fact.rcond();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1066 if (info == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1067 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1068 double rcond2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1069 SparseMatrix Q = fact.Q();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1070 SparseComplexMatrix InvL = fact.L().transpose().
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1071 tinverse(tmp_typ, info, rcond2, true, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1072 ret = Q * InvL.hermitian() * InvL * Q.transpose();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1073 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1074 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1075 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1076 // Matrix is either singular or not positive definite
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1077 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1078 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1079 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1080 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1081
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1082 if (!mattype.is_hermitian())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1083 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1084 octave_idx_type n = rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1085 ColumnVector Qinit(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1086 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1087 Qinit(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1088
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1089 MatrixType tmp_typ (MatrixType::Upper);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1090 SparseComplexLU fact (*this, Qinit, Matrix (), false, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1091 rcond = fact.rcond();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1092 double rcond2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1093 SparseComplexMatrix InvL = fact.L().transpose().
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1094 tinverse(tmp_typ, info, rcond2, true, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1095 SparseComplexMatrix InvU = fact.U().
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1096 tinverse(tmp_typ, info, rcond2, true, false).transpose();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1097 ret = fact.Pc().transpose() * InvU * InvL * fact.Pr();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1098 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1099 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1100
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1101 return ret;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1102 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1103
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1104 ComplexDET
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1105 SparseComplexMatrix::determinant (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1106 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1107 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1108 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1109 return determinant (info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1110 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1111
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1112 ComplexDET
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1113 SparseComplexMatrix::determinant (octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1114 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1115 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1116 return determinant (info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1117 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1118
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1119 ComplexDET
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5604 diff changeset	1120 SparseComplexMatrix::determinant (octave_idx_type& err, double& rcond, int) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1121 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1122 ComplexDET retval;
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1123 #ifdef HAVE_UMFPACK
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1124
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1125 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1126 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1127
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1128 if (nr == 0 \|\| nc == 0 \|\| nr != nc)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1129 {
8335 64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1130 retval = ComplexDET (1.0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1131 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1132 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1133 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1134 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1135
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1136 // Setup the control parameters
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1137 Matrix Control (UMFPACK_CONTROL, 1);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1138 double *control = Control.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1139 UMFPACK_ZNAME (defaults) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1140
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	1141 double tmp = octave_sparse_params::get_key ("spumoni");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1142 if (!xisnan (tmp))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1143 Control (UMFPACK_PRL) = tmp;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1144
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	1145 tmp = octave_sparse_params::get_key ("piv_tol");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1146 if (!xisnan (tmp))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1147 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1148 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1149 Control (UMFPACK_PIVOT_TOLERANCE) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1150 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1151
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1152 // Set whether we are allowed to modify Q or not
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	1153 tmp = octave_sparse_params::get_key ("autoamd");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1154 if (!xisnan (tmp))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1155 Control (UMFPACK_FIXQ) = tmp;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1156
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1157 // Turn-off UMFPACK scaling for LU
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1158 Control (UMFPACK_SCALE) = UMFPACK_SCALE_NONE;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1159
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1160 UMFPACK_ZNAME (report_control) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1161
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1162 const octave_idx_type *Ap = cidx ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1163 const octave_idx_type *Ai = ridx ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1164 const Complex *Ax = data ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1165
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1166 UMFPACK_ZNAME (report_matrix) (nr, nc, Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1167 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1168 0, 1, control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1169
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1170 void *Symbolic;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1171 Matrix Info (1, UMFPACK_INFO);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1172 double *info = Info.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1173 int status = UMFPACK_ZNAME (qsymbolic)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1174 (nr, nc, Ap, Ai, reinterpret_cast<const double *> (Ax), 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1175 0, &Symbolic, control, info);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1176
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1177 if (status < 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1178 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1179 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1180 ("SparseComplexMatrix::determinant symbolic factorization failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1181
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1182 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1183 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1184
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1185 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1186 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1187 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1188 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1189 UMFPACK_ZNAME (report_symbolic) (Symbolic, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1190
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1191 void *Numeric;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1192 status
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1193 = UMFPACK_ZNAME (numeric) (Ap, Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1194 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1195 0, Symbolic, &Numeric, control, info) ;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1196 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1197
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1198 rcond = Info (UMFPACK_RCOND);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1199
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1200 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1201 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1202 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1203 ("SparseComplexMatrix::determinant numeric factorization failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1204
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1205 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1206 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1207
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1208 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1209 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1210 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1211 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1212 UMFPACK_ZNAME (report_numeric) (Numeric, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1213
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1214 double c10[2], e10;
8335 64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1215
64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1216 status = UMFPACK_ZNAME (get_determinant) (c10, 0, &e10,
64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1217 Numeric, info);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1218
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1219 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1220 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1221 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1222 ("SparseComplexMatrix::determinant error calculating determinant");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1223
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1224 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1225 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1226 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1227 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1228 retval = ComplexDET (Complex (c10[0], c10[1]), e10, 10);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1229
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1230 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1231 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1232 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1233 }
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1234 #else
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1235 (*current_liboctave_error_handler) ("UMFPACK not installed");
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1236 #endif
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1237
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1238 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1239 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1240
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1241 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1242 SparseComplexMatrix::dsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1243 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1244 solve_singularity_handler, bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1245 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1246 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1247
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1248 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1249 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1250 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1251 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1252
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1253 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1254 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1255 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1256 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1257 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1258 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1259 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1260 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1261 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1262 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1263
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1264 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1265 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1266 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1267 retval.resize (nc, b.cols(), Complex(0.,0.));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1268 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1269 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1270 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1271 retval(i,j) = b(i,j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1272 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1273 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1274 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1275 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1276 retval(k,j) = b(ridx(i),j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1277
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1278 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1279 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1280 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1281 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1282 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1283 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1284 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1285 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1286 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1287 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1288 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1289 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1290 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1291 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1292 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1293 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1294 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1295 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1296 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1297
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1298 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1299 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1300
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1301 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1302 SparseComplexMatrix::dsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1303 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1304 solve_singularity_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1305 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1306 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1307 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1308
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1309 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1310 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1311 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1312 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1313
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1314 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1315 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1316 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1317 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1318 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1319 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1320 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1321 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1322 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1323 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1324
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1325 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1326 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1327 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1328 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1329 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1330 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1331
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1332 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1333 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1334 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1335 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1336 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1337 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1338 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1339 if (b.ridx(i) >= nm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1340 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1341 retval.xridx (ii) = b.ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1342 retval.xdata (ii++) = b.data(i) / data (b.ridx (i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1343 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1344 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1345 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1346 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1347 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1348 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1349 for (octave_idx_type l = 0; l < nc; l++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1350 for (octave_idx_type i = cidx(l); i < cidx(l+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1351 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1352 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1353 octave_idx_type k;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1354 for (k = b.cidx(j); k < b.cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1355 if (ridx(i) == b.ridx(k))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1356 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1357 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1358 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1359 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1360 if (found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1361 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1362 retval.xridx (ii) = l;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1363 retval.xdata (ii++) = b.data(k) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1364 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1365 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1366 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1367 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1368
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1369 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1370 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1371 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1372 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1373 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1374 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1375 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1376 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1377 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1378 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1379 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1380 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1381 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1382 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1383 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1384 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1385 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1386 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1387 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1388
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1389 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1390 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1391
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1392 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1393 SparseComplexMatrix::dsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1394 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1395 solve_singularity_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1396 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1397 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1398 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1399
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1400 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1401 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1402 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1403 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1404
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1405 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1406 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1407 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1408 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1409 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1410 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1411 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1412 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1413 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1414 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1415
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1416 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1417 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1418 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1419 retval.resize (nc, b.cols(), Complex(0.,0.));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1420 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1421 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1422 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1423 retval(i,j) = b(i,j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1424 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1425 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1426 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1427 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1428 retval(k,j) = b(ridx(i),j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1429
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1430 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1431 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1432 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1433 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1434 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1435 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1436 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1437 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1438 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1439 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1440 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1441 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1442 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1443 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1444 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1445 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1446 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1447 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1448 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1449
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1450 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1451 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1452
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1453 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1454 SparseComplexMatrix::dsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1455 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1456 solve_singularity_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1457 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1458 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1459 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1460
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1461 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1462 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1463 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1464 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1465
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1466 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1467 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1468 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1469 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1470 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1471 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1472 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1473 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1474 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1475 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1476
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1477 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1478 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1479 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1480 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1481 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1482 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1483
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1484 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1485 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1486 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1487 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1488 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1489 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1490 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1491 if (b.ridx(i) >= nm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1492 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1493 retval.xridx (ii) = b.ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1494 retval.xdata (ii++) = b.data(i) / data (b.ridx (i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1495 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1496 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1497 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1498 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1499 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1500 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1501 for (octave_idx_type l = 0; l < nc; l++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1502 for (octave_idx_type i = cidx(l); i < cidx(l+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1503 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1504 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1505 octave_idx_type k;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1506 for (k = b.cidx(j); k < b.cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1507 if (ridx(i) == b.ridx(k))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1508 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1509 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1510 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1511 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1512 if (found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1513 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1514 retval.xridx (ii) = l;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1515 retval.xdata (ii++) = b.data(k) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1516 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1517 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1518 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1519 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1520
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1521 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1522 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1523 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1524 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1525 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1526 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1527 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1528 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1529 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1530 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1531 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1532 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1533 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1534 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1535 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1536 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1537 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1538 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1539 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1540
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1541 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1542 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1543
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1544 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1545 SparseComplexMatrix::utsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1546 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1547 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1548 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1549 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1550 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1551
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1552 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1553 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1554 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1555 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1556
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1557 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1558 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1559 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1560 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1561 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1562 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1563 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1564 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1565 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1566 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1567
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1568 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1569 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1570 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1571 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1572 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1573 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1574 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1575
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1576 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1577 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1578 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1579 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1580 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1581 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1582 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1583 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1584 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1585 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1586 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1587 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1588
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1589 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1590 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1591 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1592 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1593 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1594
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1595 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1596 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1597 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1598 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1599 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1600 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1601
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1602 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1603 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1604 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1605
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1606 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1607 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1608 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1609 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1610 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1611 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1612 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1613 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1614
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1615 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1616 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1617 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1618 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1619 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1620 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1621 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1622 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1623 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1624 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1625
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1626 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1627 retval (perm[i], j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1628 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1629
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1630 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1631 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1632 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1633 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1634 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1635
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1636 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1637 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1638 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1639
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1640 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1641 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1642 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1643
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1644 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1645 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1646 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1647 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1648 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1649 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1650 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1651 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1652 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1653 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1654 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1655 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1656 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1657 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1658 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1659 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1660 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1661 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1662 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1663 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1664 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1665 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1666 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1667 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1668 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1669 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1670 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1671 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1672
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1673 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1674 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1675 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1676 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1677 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1678 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1679
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1680 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1681 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1682 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1683 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1684 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1685 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1686 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1687 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1688 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1689 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1690
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1691 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1692 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1693 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1694 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1695 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1696 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1697 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1698 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1699 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1700
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1701 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1702 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1703 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1704
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1705 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1706 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1707 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1708 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1709 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1710
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1711 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1712 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1713 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1714
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1715 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1716 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1717 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1718 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1719 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1720 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1721 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1722 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1723 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1724 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1725 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1726 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1727 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1728 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1729 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1730 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1731 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1732 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1733 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1734 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1735 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1736 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1737 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1738 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1739 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1740 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1741
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1742 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1743 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1744 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1745 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1746 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1747 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1748 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1749 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1750 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1751 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1752 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1753 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1754 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1755
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1756 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1757
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1758 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1759 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1760 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1761
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1762 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1763 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1764 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1765 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1766 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1767 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1768 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1769 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1770 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1771 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1772 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1773 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1774 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1775 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1776
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1777 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1778 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1779
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1780 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1781 SparseComplexMatrix::utsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1782 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1783 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1784 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1785 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1786 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1787
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1788 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1789 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1790 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1791 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1792
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1793 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1794 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1795 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1796 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1797 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1798 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1799 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1800 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1801 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1802 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1803
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1804 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1805 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1806 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1807 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1808 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1809 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1810
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1811 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1812 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1813 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1814 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1815 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1816 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1817 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1818 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1819 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1820 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1821 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1822 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1823
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1824 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1825 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1826 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1827 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1828 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1829 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1830
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1831 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1832 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1833 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1834 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1835
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1836 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1837 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1838 rperm[perm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1839
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1840 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1841 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1842 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1843 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1844 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1845 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1846
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1847 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1848 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1849 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1850
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1851 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1852 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1853 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1854 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1855 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1856 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1857 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1858 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1859
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1860 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1861 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1862 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1863 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1864 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1865 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1866 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1867 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1868 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1869 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1870
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1871 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1872 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1873 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1874 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1875 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1876 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1877
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1878 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1879 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1880 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1881 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1882 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1883 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1884 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1885
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1886 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1887 if (work[rperm[i]] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1888 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1889 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1890 retval.xdata(ii++) = work[rperm[i]];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1891 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1892 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1893 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1894
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1895 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1896
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1897 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1898 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1899 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1900 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1901 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1902
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1903 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1904 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1905 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1906
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1907 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1908 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1909 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1910
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1911 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1912 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1913 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1914 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1915 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1916 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1917 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1918 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1919 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1920 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1921 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1922 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1923 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1924 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1925 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1926 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1927 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1928 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1929 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1930 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1931 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1932 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1933 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1934 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1935 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1936 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1937 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1938
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1939 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1940 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1941 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1942 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1943 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1944 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1945
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1946 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1947 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1948 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1949 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1950 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1951 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1952 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1953 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1954 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1955 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1956
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1957 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1958 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1959 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1960 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1961 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1962 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1963 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1964 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1965 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1966
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1967 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1968 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1969 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1970 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1971 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1972 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1973
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1974 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1975 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1976 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1977 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1978 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1979 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1980 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1981
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1982 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1983 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1984 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1985 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1986 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1987 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1988 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1989 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1990
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1991 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1992
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1993 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1994 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1995 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1996 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1997 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1998
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1999 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2000 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2001 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2002
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2003 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2004 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2005 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2006 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2007 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2008 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2009 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2010 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2011 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2012 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2013 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2014 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2015 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2016 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2017 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2018 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2019 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2020 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2021 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2022 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2023 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2024 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2025 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2026 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2027 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2028 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2029
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2030 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2031 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2032 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2033 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2034 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2035 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2036 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2037 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2038 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2039 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2040 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2041 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2042 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2043
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2044 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2045
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2046 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2047 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2048 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2049
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2050 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2051 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2052 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2053 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2054 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2055 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2056 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2057 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2058 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2059 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2060 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2061 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2062 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2063 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2064 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2065 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2066
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2067 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2068 SparseComplexMatrix::utsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2069 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2070 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2071 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2072 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2073 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2074
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2075 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2076 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2077 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2078 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2079
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2080 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2081 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2082 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2083 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2084 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2085 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2086 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2087 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2088 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2089 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2090
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2091 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2092 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2093 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2094 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2095 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2096 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2097 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2098
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2099 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2100 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2101 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2102 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2103 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2104 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2105 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2106 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2107 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2108 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2109 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2110 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2111
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2112 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2113 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2114 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2115 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2116 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2117
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2118 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2119 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2120 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2121 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2122 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2123 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2124
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2125 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2126 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2127 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2128
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2129 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2130 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2131 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2132 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2133 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2134 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2135 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2136 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2137
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2138 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2139 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2140 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2141 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2142 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2143 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2144 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2145 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2146 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2147 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2148
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2149 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2150 retval (perm[i], j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2151 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2152
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2153 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2154 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2155 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2156 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2157 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2158
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2159 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2160 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2161 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2162
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2163 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2164 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2165 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2166
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2167 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2168 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2169 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2170 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2171 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2172 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2173 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2174 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2175 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2176 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2177 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2178 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2179 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2180 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2181 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2182 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2183 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2184 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2185 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2186 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2187 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2188 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2189 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2190 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2191 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2192 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2193 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2194 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2195
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2196 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2197 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2198 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2199 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2200 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2201 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2202
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2203 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2204 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2205 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2206 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2207 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2208 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2209 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2210 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2211 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2212 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2213
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2214 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2215 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2216 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2217 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2218 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2219 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2220 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2221 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2222 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2223
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2224 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2225 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2226 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2227
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2228 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2229 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2230 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2231 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2232 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2233
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2234 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2235 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2236 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2237
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2238 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2239 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2240 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2241 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2242 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2243 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2244 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2245 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2246 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2247 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2248 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2249 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2250 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2251 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2252 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2253 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2254 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2255 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2256 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2257 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2258 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2259 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2260 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2261 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2262 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2263 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2264
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2265 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2266 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2267 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2268 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2269 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2270 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2271 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2272 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2273 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2274 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2275 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2276 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2277 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2278
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2279 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2280
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2281 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2282 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2283 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2284
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2285 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2286 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2287 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2288 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2289 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2290 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2291 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2292 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2293 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2294 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2295 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2296 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2297 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2298 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2299
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2300 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2301 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2302
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2303 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2304 SparseComplexMatrix::utsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2305 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2306 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2307 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2308 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2309 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2310
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2311 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2312 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2313 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2314 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2315
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2316 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2317 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2318 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2319 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2320 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2321 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2322 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2323 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2324 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2325 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2326
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2327 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2328 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2329 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2330 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2331 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2332 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2333
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2334 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2335 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2336 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2337 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2338 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2339 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2340 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2341 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2342 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2343 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2344 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2345 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2346
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2347 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2348 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2349 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2350 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2351 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2352 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2353
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2354 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2355 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2356 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2357 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2358
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2359 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2360 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2361 rperm[perm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2362
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2363 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2364 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2365 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2366 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2367 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2368 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2369
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2370 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2371 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2372 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2373
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2374 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2375 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2376 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2377 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2378 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2379 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2380 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2381 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2382
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2383 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2384 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2385 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2386 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2387 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2388 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2389 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2390 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2391 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2392 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2393
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2394 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2395 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2396 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2397 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2398 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2399 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2400
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2401 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2402 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2403 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2404 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2405 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2406 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2407 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2408
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2409 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2410 if (work[rperm[i]] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2411 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2412 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2413 retval.xdata(ii++) = work[rperm[i]];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2414 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2415 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2416 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2417
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2418 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2419
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2420 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2421 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2422 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2423 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2424 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2425
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2426 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2427 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2428 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2429
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2430 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2431 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2432 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2433
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2434 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2435 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2436 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2437 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2438 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2439 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2440 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2441 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2442 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2443 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2444 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2445 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2446 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2447 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2448 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2449 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2450 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2451 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2452 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2453 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2454 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2455 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2456 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2457 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2458 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2459 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2460 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2461
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2462 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2463 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2464 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2465 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2466 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2467 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2468
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2469 for (octave_idx_type k = nr-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2470 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2471 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2472 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2473 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2474 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2475 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2476 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2477 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2478 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2479
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2480 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2481 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2482 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2483 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2484 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2485 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2486 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2487 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2488 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2489
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2490 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2491 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2492 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2493 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2494 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2495 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2496
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2497 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2498 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2499 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2500 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2501 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2502 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2503 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2504
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2505 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2506 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2507 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2508 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2509 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2510 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2511 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2512 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2513
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2514 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2515
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2516 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2517 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2518 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2519 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2520 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2521
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2522 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2523 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2524 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2525
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2526 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2527 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2528 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2529 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2530 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2531 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2532 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2533 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2534 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2535 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2536 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2537 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2538 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2539 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2540 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2541 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2542 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2543 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2544 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2545 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2546 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2547 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2548 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2549 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2550 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2551 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2552
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2553 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2554 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2555 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2556 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2557 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2558 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2559 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2560 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2561 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2562 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2563 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2564 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2565 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2566
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2567 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2568
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2569 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2570 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2571 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2572
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2573 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2574 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2575 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2576 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2577 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2578 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2579 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2580 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2581 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2582 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2583 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2584 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2585 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2586 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2587
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2588 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2589 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2590
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2591 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2592 SparseComplexMatrix::ltsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2593 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2594 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2595 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2596 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2597 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2598
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2599 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2600 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2601 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2602 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2603
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2604 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2605 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2606 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2607 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2608 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2609 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2610 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2611 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2612 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2613 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2614
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2615 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2616 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2617 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2618 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2619 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2620 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2621 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2622
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2623 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2624 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2625 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2626 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2627 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2628 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2629 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2630 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2631 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2632 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2633 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2634 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2635
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2636 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2637 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2638 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2639 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2640 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2641
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2642 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2643 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2644 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2645 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2646 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2647 work[perm[i]] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2648
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2649 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2650 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2651 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2652 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2653 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2654 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2655
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2656 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2657 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2658 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2659 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2660 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2661 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2662
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2663 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2664 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2665 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2666 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2667 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2668
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2669 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2670 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2671 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2672 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2673 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2674 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2675
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2676 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2677 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2678 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2679 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2680 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2681
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2682 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2683 retval (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2684 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2685
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2686 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2687 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2688 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2689 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2690 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2691
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2692 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2693 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2694 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2695
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2696 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2697 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2698 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2699 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2700 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2701 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2702
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2703 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2704 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2705 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2706 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2707 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2708 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2709 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2710
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2711 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2712 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2713 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2714 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2715 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2716 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2717 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2718
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2719 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2720 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2721 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2722 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2723 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2724
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2725 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2726 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2727 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2728 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2729 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2730 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2731 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2732 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2733 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2734 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2735 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2736 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2737 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2738 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2739 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2740 retval.resize (nc, b_nc, 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2741
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2742 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2743 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2744 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2745 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2746 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2747 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2748 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2749 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2750 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2751 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2752 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2753 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2754 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2755 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2756 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2757 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2758
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2759 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2760 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2761 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2762 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2763 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2764 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2765 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2766 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2767 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2768 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2769 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2770 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2771
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2772 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2773 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2774 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2775 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2776 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2777
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2778 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2779 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2780 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2781
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2782 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2783 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2784
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2785 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2786 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2787 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2788 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2789 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2790 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2791 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2792 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2793 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2794 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2795 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2796 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2797 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2798 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2799 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2800 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2801 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2802 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2803 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2804 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2805 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2806 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2807 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2808 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2809 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2810 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2811 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2812 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2813 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2814 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2815 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2816 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2817 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2818 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2819 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2820 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2821 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2822
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2823 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2824
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2825 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2826 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2827 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2828
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2829 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2830 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2831 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2832 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2833 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2834 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2835 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2836 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2837 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2838 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2839 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2840 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2841 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2842 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2843
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2844 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2845 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2846
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2847 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2848 SparseComplexMatrix::ltsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2849 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2850 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2851 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2852 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2853 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2854
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2855 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2856 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2857 octave_idx_type nm = (nc > nr ? nc : nr);
512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2858
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2859 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2860
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2861 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2862 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2863 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2864 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2865 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2866 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2867 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2868 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2869 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2870 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2871
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2872 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2873 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2874 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2875 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2876 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2877 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2878
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2879 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2880 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2881 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2882 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2883 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2884 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2885 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2886 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2887 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2888 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2889 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2890 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2891
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2892 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2893 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2894 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2895 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2896 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2897 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2898
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2899 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2900 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2901 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2902 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2903
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2904 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2905 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2906 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2907 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2908 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2909 work[perm[b.ridx(i)]] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2910
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2911 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2912 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2913 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2914 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2915 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2916 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2917
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2918 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2919 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2920 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2921 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2922 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2923 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2924
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2925 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2926 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2927 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2928 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2929 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2930
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2931 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2932 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2933 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2934 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2935 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2936 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2937
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2938 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2939 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2940 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2941 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2942 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2943
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2944 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2945 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2946 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2947 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2948 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2949 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2950
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2951 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2952 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2953 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2954 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2955 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2956 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2957 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2958
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2959 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2960 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2961 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2962 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2963 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2964 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2965 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2966 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2967
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2968 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2969
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2970 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2971 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2972 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2973 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2974 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2975
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2976 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2977 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2978 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2979
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2980 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2981 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2982 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2983 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2984 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2985 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2986
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2987 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2988 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2989 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2990 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2991 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2992 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2993 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2994
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2995 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2996 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2997 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2998 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2999 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3000 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3001 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3002
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3003 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3004 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3005 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3006 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3007 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3008
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3009 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3010 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3011 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3012 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3013 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3014 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3015 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3016 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3017 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3018 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3019 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3020 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3021 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3022 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3023 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3024
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3025 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3026 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3027 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3028 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3029 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3030 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3031
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3032 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3033 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3034 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3035 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3036 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3037 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3038 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3039 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3040 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3041 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3042
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3043 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3044 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3045 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3046 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3047 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3048 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3049 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3050 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3051 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3052
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3053 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3054 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3055 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3056 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3057 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3058 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3059
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3060 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3061 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3062 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3063 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3064 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3065 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3066 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3067
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3068 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3069 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3070 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3071 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3072 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3073 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3074 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3075 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3076
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3077 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3078
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3079 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3080 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3081 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3082 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3083 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3084
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3085 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3086 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3087 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3088
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3089 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3090 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3091
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3092 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3093 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3094 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3095 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3096 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3097 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3098 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3099 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3100 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3101 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3102 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3103 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3104 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3105 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3106 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3107 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3108 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3109 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3110 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3111 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3112 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3113 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3114 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3115 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3116
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3117 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3118 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3119 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3120 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3121 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3122 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3123 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3124 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3125 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3126 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3127 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3128 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3129 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3130
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3131 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3132
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3133 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3134 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3135 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3136
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3137 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3138 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3139 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3140 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3141 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3142 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3143 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3144 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3145 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3146 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3147 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3148 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3149 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3150 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3151
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3152 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3153 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3154
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3155 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3156 SparseComplexMatrix::ltsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3157 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3158 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3159 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3160 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3161 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3162
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3163 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3164 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	3165 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3166 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3167
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3168 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3169 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3170 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3171 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3172 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3173 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3174 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3175 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3176 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3177 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3178
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3179 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3180 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3181 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3182 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3183 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3184 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3185 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3186
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3187 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3188 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3189 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3190 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3191 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3192 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3193 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3194 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3195 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3196 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3197 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3198 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3199
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3200 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3201 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3202 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3203 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3204 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3205
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3206 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3207 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3208 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3209 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3210 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3211 work[perm[i]] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3212
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3213 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3214 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3215 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3216 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3217 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3218 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3219
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3220 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3221 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3222 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3223 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3224 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3225 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3226
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3227 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3228 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3229 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3230 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3231 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3232
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3233 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3234 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3235 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3236 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3237 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3238 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3239
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3240 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3241 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3242 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3243 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3244 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3245
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3246 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3247 retval (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3248 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3249
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3250 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3251 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3252 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3253 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3254 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3255
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3256 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3257 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3258 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3259
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3260 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3261 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3262 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3263 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3264 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3265 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3266
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3267 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3268 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3269 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3270 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3271 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3272 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3273 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3274
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3275 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3276 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3277 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3278 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3279 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3280 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3281 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3282
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3283 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3284 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3285 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3286 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3287 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3288
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3289 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3290 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3291 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3292 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3293 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3294 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3295 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3296 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3297 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3298 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3299 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3300 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3301 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3302 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3303 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3304 retval.resize (nc, b_nc, 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3305
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3306
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3307 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3308 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3309 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3310 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3311 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3312 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3313
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3314 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3315 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3316 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3317 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3318 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3319 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3320 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3321 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3322 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3323 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3324
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3325 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3326 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3327 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3328 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3329 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3330 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3331 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3332 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3333 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3334
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3335 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3336 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3337 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3338
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3339 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3340 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3341 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3342 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3343 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3344
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3345 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3346 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3347 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3348
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3349 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3350 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3351
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3352 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3353 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3354 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3355 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3356 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3357 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3358 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3359 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3360 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3361 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3362 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3363 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3364 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3365 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3366 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3367 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3368 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3369 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3370 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3371 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3372 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3373 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3374 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3375 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3376
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3377 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3378 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3379 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3380 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3381 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3382 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3383 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3384 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3385 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3386 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3387 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3388 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3389 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3390
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3391 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3392
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3393 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3394 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3395 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3396
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3397 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3398 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3399 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3400 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3401 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3402 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3403 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3404 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3405 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3406 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3407 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3408 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3409 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3410 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3411
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3412 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3413 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3414
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3415 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3416 SparseComplexMatrix::ltsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3417 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3418 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3419 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3420 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3421 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3422
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3423 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3424 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	3425 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3426 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3427
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3428 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3429 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3430 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3431 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3432 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3433 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3434 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3435 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3436 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3437 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3438
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3439 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3440 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3441 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3442 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3443 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3444 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3445
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3446 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3447 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3448 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3449 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3450 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3451 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3452 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3453 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3454 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3455 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3456 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3457 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3458
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3459 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3460 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3461 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3462 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3463 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3464 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3465
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3466 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3467 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3468 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3469 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3470
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3471 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3472 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3473 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3474 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3475 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3476 work[perm[b.ridx(i)]] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3477
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3478 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3479 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3480 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3481 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3482 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3483 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3484
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3485 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3486 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3487 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3488 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3489 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3490 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3491
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3492 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3493 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3494 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3495 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3496 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3497
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3498 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3499 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3500 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3501 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3502 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3503 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3504
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3505 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3506 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3507 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3508 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3509 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3510
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3511 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3512 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3513 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3514 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3515 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3516 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3517
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3518 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3519 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3520 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3521 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3522 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3523 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3524 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3525
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3526 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3527 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3528 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3529 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3530 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3531 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3532 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3533 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3534
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3535 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3536
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3537 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3538 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3539 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3540 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3541 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3542
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3543 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3544 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3545 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3546
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3547 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3548 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3549 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3550 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3551 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3552 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3553
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3554 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3555 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3556 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3557 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3558 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3559 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3560 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3561
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3562 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3563 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3564 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3565 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3566 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3567 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3568 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3569
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3570 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3571 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3572 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3573 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3574 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3575
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3576 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3577 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3578 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3579 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3580 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3581 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3582 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3583 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3584 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3585 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3586 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3587 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3588 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3589 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3590 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3591
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3592 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3593 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3594 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3595 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3596 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3597 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3598
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3599 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3600 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3601 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3602 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3603 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3604 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3605 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3606 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3607 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3608 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3609
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3610 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3611 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3612 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3613 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3614 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3615 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3616 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3617 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3618 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3619
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3620 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3621 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3622 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3623 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3624 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3625 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3626
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3627 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3628 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3629 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3630 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3631 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3632 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3633 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3634
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3635 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3636 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3637 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3638 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3639 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3640 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3641 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3642 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3643
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3644 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3645
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3646 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3647 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3648 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3649 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3650 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3651
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3652 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3653 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3654 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3655
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3656 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3657 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3658
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3659 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3660 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3661 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3662 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3663 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3664 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3665 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3666 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3667 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3668 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3669 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3670 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3671 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3672 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3673 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3674 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3675 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3676 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3677 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3678 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3679 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3680 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3681 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3682 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3683
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3684 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3685 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3686 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3687 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3688 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3689 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3690 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3691 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3692 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3693 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3694 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3695 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3696 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3697
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3698 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3699
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3700 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3701 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3702 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3703
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3704 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3705 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3706 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3707 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3708 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3709 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3710 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3711 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3712 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3713 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3714 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3715 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3716 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3717 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3718
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3719 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3720 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3721
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3722 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3723 SparseComplexMatrix::trisolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3724 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3725 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3726 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3727 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3728 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3729
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3730 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3731 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3732 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3733
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3734 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3735 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3736 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3737 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3738 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3739 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3740 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3741 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3742 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3743 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3744 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3745 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3746 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3747
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3748 if (typ == MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3749 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3750 OCTAVE_LOCAL_BUFFER (double, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3751 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3752
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3753 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3754 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3755 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3756
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3757 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3758 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3759 D[j] = std::real(data(ii++));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3760 DL[j] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3761 ii += 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3762 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3763 D[nc-1] = std::real(data(ii));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3764 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3765 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3766 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3767 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3768 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3769 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3770 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3771 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3772 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3773
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3774 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3775 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3776 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3777 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3778 D[j] = std::real(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3779 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3780 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3781 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3782 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3783
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3784 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3785 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3786 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3787
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3788 F77_XFCN (zptsv, ZPTSV, (nr, b_nc, D, DL, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3789 b.rows(), err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3790
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3791 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3792 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3793 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3794 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3795 typ = MatrixType::Tridiagonal;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3796 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3797 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3798 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3799 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3800
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3801 if (typ == MatrixType::Tridiagonal)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3802 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3803 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3804 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3805 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3806
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3807 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3808 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3809 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3810
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3811 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3812 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3813 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3814 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3815 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3816 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3817 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3818 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3819 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3820 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3821 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3822 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3823 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3824 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3825 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3826 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3827 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3828
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3829 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3830 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3831 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3832 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3833 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3834 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3835 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3836 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3837 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3838 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3839 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3840
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3841 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3842 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3843 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3844
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3845 F77_XFCN (zgtsv, ZGTSV, (nr, b_nc, DL, D, DU, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3846 b.rows(), err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3847
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3848 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3849 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3850 rcond = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3851 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3852
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3853 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3854 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3855 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3856 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3857 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3858 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3859 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3860 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3861
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3862 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3863 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3864 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3865 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3866 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3867 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3868 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3869
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3870 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3871 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3872
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3873 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3874 SparseComplexMatrix::trisolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3875 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3876 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3877 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3878 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3879 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3880
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3881 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3882 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3883 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3884
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3885 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3886 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3887 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3888 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3889 retval = SparseComplexMatrix (nc, b.cols ());
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3890 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3891 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3892 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3893 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3894 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3895 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3896 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3897 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3898
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3899 // Note can't treat symmetric case as there is no dpttrf function
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3900 if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3901 typ == MatrixType::Tridiagonal_Hermitian)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3902 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3903 OCTAVE_LOCAL_BUFFER (Complex, DU2, nr - 2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3904 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3905 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3906 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	3907 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3908 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3909
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3910 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3911 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3912 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3913
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3914 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3915 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3916 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3917 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3918 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3919 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3920 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3921 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3922 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3923 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3924 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3925 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3926 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3927 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3928 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3929 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3930 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3931
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3932 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3933 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3934 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3935 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3936 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3937 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3938 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3939 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3940 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3941 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3942 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3943
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3944 F77_XFCN (zgttrf, ZGTTRF, (nr, DL, D, DU, DU2, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3945
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3946 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3947 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3948 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3949 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3950
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3951 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3952 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3953 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3954 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3955 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3956 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3957 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3958 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3959
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3960 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3961 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3962 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3963 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3964 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3965 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3966 retval = SparseComplexMatrix (nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3967 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3968 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3969 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3970
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3971 OCTAVE_LOCAL_BUFFER (Complex, work, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3972
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3973 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3974 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3975 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3976 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3977 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3978 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3979
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3980 F77_XFCN (zgttrs, ZGTTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3981 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3982 nr, 1, DL, D, DU, DU2, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3983 work, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3984 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3985
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3986 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3987 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3988 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3989 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3990 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3991 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3992
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3993 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3994 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3995 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3996 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3997 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3998 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3999 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4000
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4001 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4002 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4003 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4004 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4005 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4006 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4007 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4008 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4009
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4010 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4011 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4012 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4013 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4014 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4015 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4016
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4017 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4018 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4019
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4020 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4021 SparseComplexMatrix::trisolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4022 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4023 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4024 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4025 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4026 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4027
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4028 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4029 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4030 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4031
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4032 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4033 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4034 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4035 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4036 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4037 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4038 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4039 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4040 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4041 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4042 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4043 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4044 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4045
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4046 if (typ == MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4047 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4048 OCTAVE_LOCAL_BUFFER (double, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4049 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4050
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4051 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4052 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4053 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4054
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4055 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4056 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4057 D[j] = std::real(data(ii++));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4058 DL[j] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4059 ii += 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4060 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4061 D[nc-1] = std::real(data(ii));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4062 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4063 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4064 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4065 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4066 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4067 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4068 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4069 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4070 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4071
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4072 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4073 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4074 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4075 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4076 D[j] = std::real (data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4077 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4078 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4079 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4080 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4081
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4082 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4083 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4084 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4085
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4086 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4087 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4088
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4089 F77_XFCN (zptsv, ZPTSV, (nr, b_nc, D, DL, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4090 b_nr, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4091
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4092 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4093 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4094 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4095 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4096 typ = MatrixType::Tridiagonal;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4097 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4098 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4099
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4100 if (typ == MatrixType::Tridiagonal)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4101 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4102 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4103 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4104 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4105
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4106 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4107 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4108 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4109
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4110 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4111 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4112 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4113 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4114 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4115 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4116 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4117 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4118 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4119 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4120 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4121 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4122 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4123 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4124 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4125 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4126 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4127
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4128 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4129 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4130 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4131 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4132 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4133 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4134 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4135 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4136 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4137 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4138 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4139
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4140 octave_idx_type b_nr = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4141 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4142 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4143
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4144 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4145 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4146
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4147 F77_XFCN (zgtsv, ZGTSV, (nr, b_nc, DL, D, DU, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4148 b_nr, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4149
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4150 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4151 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4152 rcond = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4153 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4154
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4155 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4156 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4157 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4158 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4159 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4160 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4161 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4162 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4163 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4164 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4165 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4166 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4167 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4168
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4169 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4170 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4171
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4172 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4173 SparseComplexMatrix::trisolve (MatrixType &mattype,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4174 const SparseComplexMatrix& b,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4175 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4176 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4177 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4178 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4179 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4180
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4181 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4182 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4183 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4184
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4185 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4186 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4187 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4188 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4189 retval = SparseComplexMatrix (nc, b.cols ());
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4190 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4191 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4192 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4193 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4194 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4195 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4196 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4197 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4198
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4199 // Note can't treat symmetric case as there is no dpttrf function
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4200 if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4201 typ == MatrixType::Tridiagonal_Hermitian)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4202 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4203 OCTAVE_LOCAL_BUFFER (Complex, DU2, nr - 2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4204 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4205 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4206 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4207 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4208 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4209
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4210 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4211 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4212 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4213
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4214 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4215 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4216 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4217 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4218 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4219 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4220 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4221 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4222 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4223 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4224 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4225 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4226 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4227 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4228 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4229 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4230 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4231
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4232 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4233 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4234 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4235 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4236 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4237 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4238 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4239 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4240 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4241 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4242 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4243
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4244 F77_XFCN (zgttrf, ZGTTRF, (nr, DL, D, DU, DU2, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4245
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4246 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4247 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4248 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4249 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4250
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4251 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4252 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4253 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4254 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4255 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4256 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4257 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4258 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4259 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4260 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4261 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4262 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4263 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4264 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4265 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4266 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4267
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4268 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4269 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4270 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4271 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4272 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4273
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4274 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4275 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4276 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4277
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4278 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4279 Bx[i] = b (i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4280
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4281 F77_XFCN (zgttrs, ZGTTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4282 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4283 nr, 1, DL, D, DU, DU2, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4284 Bx, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4285 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4286
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4287 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4288 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4289 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4290 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4291
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4292 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4293 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4294 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4295
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4296 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4297 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4298 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4299 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4300 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4301 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4302
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4303 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4304 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4305 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4306 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4307 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4308 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4309 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4310
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4311 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4312 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4313 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4314 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4315 retval.xdata(ii++) = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4316 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4317
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4318 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4319 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4320
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4321 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4322 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4323 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4324 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4325 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4326 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4327
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4328 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4329 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4330
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4331 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4332 SparseComplexMatrix::bsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4333 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4334 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4335 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4336 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4337 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4338
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4339 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4340 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4341 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4342
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4343 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4344 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4345 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4346 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4347 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4348 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4349 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4350 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4351 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4352 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4353
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4354 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4355 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4356 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4357 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4358 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4359 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4360
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4361 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4362 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4363 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4364
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4365 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4366 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4367 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4368 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4369
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4370 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4371 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4372 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4373 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4374 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4375 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4376 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4377
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4378 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4379 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4380 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4381 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4382
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4383 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4384 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4385 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4386 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4387
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4388 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4389 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4390 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4391 // Matrix is not positive definite!! Fall through to
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4392 // unsymmetric banded solver.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4393 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4394 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4395 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4396 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4397 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4398 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4399 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4400 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4401 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4402 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4403 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4404 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4405
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4406 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4407 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4408 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4409 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4410 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4411
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4412 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4413 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4414
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4415 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4416
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4417 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4418 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4419 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4420
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4421 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4422 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4423 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4424 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4425 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4426 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4427 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4428 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4429 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4430 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4431 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4432 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4433 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4434
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4435 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4436 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4437 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4438 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4439
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4440 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4441
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4442 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4443 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4444 nr, n_lower, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4445 ldm, result, b.rows(), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4446 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4447
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4448 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4449 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4450 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4451 ("SparseMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4452 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4453 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4454 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4455 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4456 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4457
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4458 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4459 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4460 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4461 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4462 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4463 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4464
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4465 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4466 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4467
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4468 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4469 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4470 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4471
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4472 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4473 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4474 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4475 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4476
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4477 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4478 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4479 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4480
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4481 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4482 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4483 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4484 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4485 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4486 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4487 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4488 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4489 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4490 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4491 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4492 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4493 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4494
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4495 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4496 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4497
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4498 F77_XFCN (zgbtrf, ZGBTRF, (nr, nc, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4499 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4500
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4501 // Throw-away extra info LAPACK gives so as to not
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4502 // change output.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4503 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4504 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4505 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4506 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4507
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4508 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4509 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4510 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4511 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4512 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4513 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4514 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4515 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4516 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4517 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4518 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4519 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4520 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4521 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4522 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4523 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4524 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4525 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4526
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4527 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4528 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4529 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4530 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4531 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4532
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4533 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4534 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4535
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4536 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4537
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4538 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4539 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4540 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4541
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4542 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4543 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4544 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4545 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4546 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4547 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4548 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4549 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4550 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4551 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4552 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4553 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4554 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4555
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4556 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4557 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4558 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4559 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4560
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4561 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4562
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4563 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4564 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4565 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4566 nr, n_lower, n_upper, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4567 ldm, pipvt, result, b.rows(), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4568 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4569 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4570 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4571 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4572 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4573 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4574 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4575
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4576 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4577 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4578
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4579 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4580 SparseComplexMatrix::bsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4581 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4582 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4583 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4584 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4585 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4586
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4587 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4588 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4589 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4590
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4591 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4592 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4593 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4594 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4595 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4596 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4597 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4598 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4599 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4600 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4601
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4602 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4603 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4604 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4605 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4606
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4607 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4608 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4609
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4610 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4611 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4612 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4613
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4614 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4615 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4616 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4617 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4618
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4619 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4620 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4621 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4622 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4623 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4624 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4625 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4626
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4627 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4628 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4629 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4630 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4631
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4632 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4633 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4634 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4635 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4636
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4637 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4638 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4639 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4640 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4641 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4642 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4643 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4644 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4645 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4646 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4647 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4648 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4649 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4650 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4651 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4652
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4653 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4654 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4655 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4656 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4657 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4658
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4659 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4660 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4661
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4662 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4663
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4664 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4665 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4666 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4667
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4668 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4669 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4670 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4671 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4672 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4673 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4674 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4675 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4676 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4677 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4678 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4679 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4680 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4681
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4682 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4683 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4684 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4685 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4686 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4687
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4688 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4689 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4690 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4691 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4692 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4693
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4694 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4695 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4696 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4697 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4698 Bx[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4699
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4700 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4701 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4702 nr, n_lower, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4703 ldm, Bx, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4704 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4705
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4706 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4707 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4708 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4709 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4710 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4711 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4712 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4713
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4714 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4715 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4716 Complex tmp = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4717 if (tmp != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4718 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4719 if (ii == x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4720 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4721 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4722 octave_idx_type sz = x_nz *
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4723 (b_nc - j) / b_nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4724 sz = (sz > 10 ? sz : 10) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4725 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4726 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4727 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4728 retval.xdata(ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4729 retval.xridx(ii++) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4730 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4731 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4732 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4733 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4734
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4735 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4736 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4737 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4738 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4739
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4740 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4741 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4742 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4743 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4744 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4745 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4746
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4747 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4748 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4749
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4750 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4751 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4752 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4753
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4754 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4755 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4756 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4757 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4758
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4759 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4760 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4761 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4762
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4763 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4764 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4765 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4766 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4767 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4768 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4769 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4770 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4771 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4772 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4773 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4774 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4775 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4776
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4777 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4778 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4779
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4780 F77_XFCN (zgbtrf, ZGBTRF, (nr, nr, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4781 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4782
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4783 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4784 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4785 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4786 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4787
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4788 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4789 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4790 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4791 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4792 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4793 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4794 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4795 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4796
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4797 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4798 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4799 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4800 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4801 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4802 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4803 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4804 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4805 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4806 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4807
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4808 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4809 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4810 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4811 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4812 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4813
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4814 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4815 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4816
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4817 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4818
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4819 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4820 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4821 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4822
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4823 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4824 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4825 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4826 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4827 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4828 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4829 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4830 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4831 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4832 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4833 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4834 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4835 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4836
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4837 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4838 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4839 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4840 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4841 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4842 retval = SparseComplexMatrix (nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4843 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4844 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4845
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4846 OCTAVE_LOCAL_BUFFER (Complex, work, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4847
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4848 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4849 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4850 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4851 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4852 for (octave_idx_type i = b.cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4853 i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4854 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4855
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4856 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4857 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4858 nr, n_lower, n_upper, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4859 ldm, pipvt, work, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4860 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4861
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4862 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4863 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4864 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4865 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4866 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4867 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4868
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4869 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4870 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4871 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4872 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4873 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4874 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4875 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4876
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4877 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4878 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4879 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4880 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4881 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4882 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4883 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4884 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4885
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4886 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4887 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4888 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4889 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4890 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4891 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4892 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4893
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4894 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4895 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4896
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4897 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4898 SparseComplexMatrix::bsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4899 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4900 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4901 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4902 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4903 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4904
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4905 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4906 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4907 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4908
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4909 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4910 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4911 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4912 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4913 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4914 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4915 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4916 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4917 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4918 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4919
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4920 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4921 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4922 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4923 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4924
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4925 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4926 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4927
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4928 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4929 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4930 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4931
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4932 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4933 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4934 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4935 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4936
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4937 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4938 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4939 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4940 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4941 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4942 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4943 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4944
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4945 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4946 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4947 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4948 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4949
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4950 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4951 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4952 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4953 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4954
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4955 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4956 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4957 // Matrix is not positive definite!! Fall through to
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4958 // unsymmetric banded solver.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4959 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4960 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4961 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4962 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4963 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4964 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4965 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4966 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4967 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4968 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4969 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4970 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4971 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4972
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4973 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4974 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4975 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4976 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4977 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4978
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4979 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4980 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4981
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4982 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4983
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4984 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4985 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4986 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4987
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4988 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4989 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4990 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4991 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4992 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4993 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4994 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4995 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4996 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4997 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4998 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4999 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5000 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5001
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5002 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5003 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5004 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5005 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5006 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5007 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5008
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5009 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5010 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5011 nr, n_lower, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5012 ldm, result, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5013 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5014
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5015 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5016 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5017 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5018 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5019 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5020 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5021 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5022 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5023 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5024
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5025 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5026 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5027 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5028 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5029 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5030 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5031
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5032 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5033 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5034
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5035 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5036 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5037 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5038
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5039 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5040 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5041 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5042 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5043
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5044 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5045 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5046 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5047
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5048 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5049 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5050 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5051 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5052 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5053 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5054 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5055 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5056 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5057 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5058 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5059 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5060 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5061
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5062 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5063 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5064
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5065 F77_XFCN (zgbtrf, ZGBTRF, (nr, nr, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5066 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5067
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5068 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5069 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5070 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5071 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5072
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5073 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5074 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5075 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5076 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5077 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5078 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5079 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5080 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5081 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5082 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5083 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5084 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5085 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5086 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5087 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5088 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5089 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5090 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5091
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5092 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5093 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5094 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5095 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5096 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5097
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5098 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5099 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5100
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5101 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5102
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5103 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5104 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5105 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5106
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5107 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5108 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5109 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5110 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5111 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5112 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5113 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5114 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5115 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5116 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5117 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5118 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5119 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5120
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5121 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5122 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5123 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5124 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5125 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5126 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5127
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5128 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5129 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5130 nr, n_lower, n_upper, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5131 ldm, pipvt, result, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5132 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5133 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5134 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5135 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5136 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5137 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5138 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5139
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5140 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5141 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5142
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5143 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5144 SparseComplexMatrix::bsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5145 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5146 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5147 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5148 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5149 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5150
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5151 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5152 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5153 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5154
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5155 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5156 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5157 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5158 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5159 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5160 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5161 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5162 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5163 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5164 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5165
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5166 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5167 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5168 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5169 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5170
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5171 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5172 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5173
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5174 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5175 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5176 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5177
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5178 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5179 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5180 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5181 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5182
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5183 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5184 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5185 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5186 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5187 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5188 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5189 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5190
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5191 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5192 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5193 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5194 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5195
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5196 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5197 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5198 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5199 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5200
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5201 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5202 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5203 // Matrix is not positive definite!! Fall through to
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5204 // unsymmetric banded solver.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5205 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5206 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5207
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5208 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5209 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5210 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5211 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5212 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5213 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5214 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5215 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5216 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5217 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5218 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5219
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5220 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5221 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5222 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5223 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5224 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5225
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5226 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5227 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5228
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5229 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5230
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5231 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5232 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5233 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5234
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5235 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5236 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5237 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5238 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5239 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5240 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5241 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5242 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5243 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5244 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5245 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5246 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5247 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5248
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5249 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5250 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5251 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5252 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5253 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5254
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5255 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5256 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5257 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5258 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5259 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5260
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5261 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5262 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5263 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5264
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5265 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5266 Bx[i] = b (i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5267
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5268 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5269 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5270 nr, n_lower, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5271 ldm, Bx, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5272 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5273
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5274 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5275 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5276 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5277 ("SparseMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5278 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5279 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5280 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5281
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5282 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5283 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5284 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5285 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5286 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5287 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5288
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5289 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5290 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5291 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5292 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5293 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5294 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5295 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5296
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5297 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5298 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5299 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5300 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5301 retval.xdata(ii++) = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5302 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5303
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5304 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5305 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5306
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5307 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5308 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5309 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5310 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5311
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5312 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5313 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5314 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5315 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5316 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5317 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5318
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5319 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5320 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5321
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5322 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5323 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5324 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5325
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5326 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5327 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5328 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5329 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5330
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5331 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5332 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5333 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5334
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5335 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5336 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5337 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5338 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5339 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5340 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5341 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5342 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5343 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5344 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5345 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5346 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5347 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5348
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5349 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5350 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5351
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5352 F77_XFCN (zgbtrf, ZGBTRF, (nr, nr, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5353 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5354
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5355 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5356 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5357 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5358 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5359
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5360 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5361 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5362 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5363 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5364 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5365 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5366 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5367 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5368
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5369 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5370 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5371 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5372 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5373 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5374 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5375 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5376 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5377 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5378 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5379
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5380 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5381 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5382 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5383 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5384 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5385
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5386 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5387 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5388
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5389 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5390
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5391 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5392 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5393 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5394
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5395 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5396 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5397 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5398 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5399 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5400 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5401 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5402 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5403 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5404 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5405 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5406 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5407 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5408
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5409 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5410 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5411 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5412 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5413 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5414 retval = SparseComplexMatrix (nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5415 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5416 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5417
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5418 OCTAVE_LOCAL_BUFFER (Complex, Bx, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5419
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5420 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5421 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5422 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5423 Bx[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5424
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5425 for (octave_idx_type i = b.cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5426 i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5427 Bx[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5428
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5429 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5430 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5431 nr, n_lower, n_upper, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5432 ldm, pipvt, Bx, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5433 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5434
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5435 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5436 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5437 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5438 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5439 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5440 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5441
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5442 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5443 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5444 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5445 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5446 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5447 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5448 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5449
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5450 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5451 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5452 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5453 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5454 retval.xdata(ii++) = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5455 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5456 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5457 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5458
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5459 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5460 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5461 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5462 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5463 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5464 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5465 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5466
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5467 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5468 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5469
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5470 void *
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5471 SparseComplexMatrix::factorize (octave_idx_type& err, double &rcond,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5472 Matrix &Control, Matrix &Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5473 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5474 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5475 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5476 // The return values
5404 b91241999ba6 [project @ 2005-07-07 17:05:19 by jwe] jwe parents: 5389 diff changeset	5477 void *Numeric = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5478 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5479
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5480 #ifdef HAVE_UMFPACK
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5481 // Setup the control parameters
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5482 Control = Matrix (UMFPACK_CONTROL, 1);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5483 double *control = Control.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5484 UMFPACK_ZNAME (defaults) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5485
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	5486 double tmp = octave_sparse_params::get_key ("spumoni");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5487 if (!xisnan (tmp))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5488 Control (UMFPACK_PRL) = tmp;
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	5489 tmp = octave_sparse_params::get_key ("piv_tol");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5490 if (!xisnan (tmp))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5491 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5492 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5493 Control (UMFPACK_PIVOT_TOLERANCE) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5494 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5495
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5496 // Set whether we are allowed to modify Q or not
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	5497 tmp = octave_sparse_params::get_key ("autoamd");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5498 if (!xisnan (tmp))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5499 Control (UMFPACK_FIXQ) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5500
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5501 UMFPACK_ZNAME (report_control) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5502
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5503 const octave_idx_type *Ap = cidx ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5504 const octave_idx_type *Ai = ridx ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5505 const Complex *Ax = data ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5506 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5507 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5508
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5509 UMFPACK_ZNAME (report_matrix) (nr, nc, Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5510 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5511 0, 1, control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5512
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5513 void *Symbolic;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5514 Info = Matrix (1, UMFPACK_INFO);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5515 double *info = Info.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5516 int status = UMFPACK_ZNAME (qsymbolic) (nr, nc, Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5517 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5518 0, 0, &Symbolic, control, info);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5519
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5520 if (status < 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5521 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5522 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5523 ("SparseComplexMatrix::solve symbolic factorization failed");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5524 err = -1;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5525
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5526 UMFPACK_ZNAME (report_status) (control, status);
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5527 UMFPACK_ZNAME (report_info) (control, info);
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5528
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5529 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5530 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5531 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5532 {
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5533 UMFPACK_ZNAME (report_symbolic) (Symbolic, control);
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5534
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5535 status = UMFPACK_ZNAME (numeric) (Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5536 reinterpret_cast<const double *> (Ax), 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5537 Symbolic, &Numeric, control, info) ;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5538 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5539
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5540 if (calc_cond)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5541 rcond = Info (UMFPACK_RCOND);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5542 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5543 rcond = 1.;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5544 volatile double rcond_plus_one = rcond + 1.0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5545
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5546 if (status == UMFPACK_WARNING_singular_matrix \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5547 rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5548 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5549 UMFPACK_ZNAME (report_numeric) (Numeric, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5550
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5551 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5552
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5553 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5554 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5555 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5556 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5557 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5558 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5559
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5560 }
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5604 diff changeset	5561 else if (status < 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5562 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5563 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5564 ("SparseComplexMatrix::solve numeric factorization failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5565
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5566 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5567 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5568
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5569 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5570 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5571 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5572 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5573 UMFPACK_ZNAME (report_numeric) (Numeric, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5574 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5575 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5576
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5577 if (err != 0)
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5578 UMFPACK_ZNAME (free_numeric) (&Numeric);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5579 #else
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5580 (*current_liboctave_error_handler) ("UMFPACK not installed");
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5581 #endif
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5582
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5583 return Numeric;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5584 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5585
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5586 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5587 SparseComplexMatrix::fsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5588 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5589 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5590 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5591 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5592 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5593
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5594 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5595 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5596 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5597
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5598 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5599 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5600 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5601 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5602 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5603 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5604 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5605 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5606 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5607 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5608
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5609 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5610 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5611 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5612 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5613 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5614
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5615 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5616 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5617 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5618
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5619 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5620 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5621 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5622 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5623 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5624 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5625 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5626 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5627 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5628 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5629 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5630
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5631 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5632 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5633 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5634
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5635 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5636
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5637 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5638 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5639 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5640 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5641 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5642
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5643 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5644 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5645 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5646 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5647 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5648 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5649 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5650 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5651 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5652 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5653 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5654 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5655 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5656 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5657
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5658 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5659 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5660 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5661 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5662
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5663 cholmod_dense Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5664 cholmod_dense *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5665 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5666 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5667 B->d = B->nrow;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5668 B->nzmax = B->nrow * B->ncol;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5669 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5670 B->xtype = CHOLMOD_REAL;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5671 if (nc < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5672 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5673 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5674 // We won't alter it, honest :-)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5675 B->x = const_cast<double *>(b.fortran_vec());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5676
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5677 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5678 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5679 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5680 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5681 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5682 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5683 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5684 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5685 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5686
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5687 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5688 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5689 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5690 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5691 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5692 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5693 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5694 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5695 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5696
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5697 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5698 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5699 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5700
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5701 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5702 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5703 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5704 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5705 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5706 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5707 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5708 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5709 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5710
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5711 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5712 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5713
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5714 cholmod_dense *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5715 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5716 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5717 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5718
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5719 retval.resize (b.rows (), b.cols());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5720 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5721 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5722 octave_idx_type jr = j * b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5723 for (octave_idx_type i = 0; i < b.rows(); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5724 retval.xelem(i,j) = static_cast<Complex *>(X->x)[jr + i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5725 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5726
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5727 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5728 CHOLMOD_NAME(free_dense) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5729 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5730 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5731 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5732 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5733 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5734 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5735 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5736 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5737 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5738
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5739 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5740 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5741 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5742 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5743
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5744 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5745 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5746 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5747 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5748 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5749 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5750
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5751 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5752 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5753 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5754 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5755 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5756 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5757 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5758 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5759 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5760 const Complex *Ax = data ();
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5761 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5762 const double *Bx = b.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5763 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5764 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5765 Bz[i] = 0.;
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5766 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5767 OCTAVE_LOCAL_BUFFER (Complex, Bz, b_nr);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5768 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5769 retval.resize (b_nr, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5770 Complex *Xx = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5771
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5772 for (octave_idx_type j = 0, iidx = 0; j < b_nc; j++, iidx += b_nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5773 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5774 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5775 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5776 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5777 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5778 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5779 reinterpret_cast<double *> (&Xx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5780 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5781 &Bx[iidx], Bz, Numeric,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5782 control, info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5783 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5784 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5785 Bz[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5786
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5787 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5788 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5789 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5790 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5791 reinterpret_cast<double *> (&Xx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5792 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5793 reinterpret_cast<const double *> (Bz),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5794 0, Numeric,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5795 control, info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5796 #endif
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5797
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5798 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5799 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5800 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5801 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5802
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5803 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5804
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5805 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5806
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5807 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5808 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5809 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5810
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5811 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5812
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5813 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5814 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5815 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5816 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5817
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5818 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5819 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5820 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5821 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5822 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5823 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5824 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5825
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5826 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5827 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5828
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5829 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5830 SparseComplexMatrix::fsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5831 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5832 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5833 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5834 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5835 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5836
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5837 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5838 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5839 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5840
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5841 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5842 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5843 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5844 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5845 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5846 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5847 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5848 // Print spparms("spumoni") info if requested
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5849 volatile int typ = mattype.type ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5850 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5851
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5852 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5853 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5854 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5855 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5856 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5857
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5858 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5859 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5860 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5861
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5862 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5863 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5864 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5865 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5866 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5867 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5868 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5869 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5870 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5871 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5872 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5873
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5874 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5875 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5876 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5877
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5878 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5879
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5880 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5881 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5882 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5883 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5884 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5885
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5886 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5887 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5888 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5889 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5890 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5891 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5892 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5893 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5894 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5895 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5896 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5897 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5898 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5899 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5900
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5901 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5902 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5903 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5904 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5905
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5906 cholmod_sparse Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5907 cholmod_sparse *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5908 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5909 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5910 B->p = b.cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5911 B->i = b.ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5912 B->nzmax = b.nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5913 B->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5914 B->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5915 B->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5916 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5917 B->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5918 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5919 B->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5920 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5921 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5922 B->stype = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5923 B->xtype = CHOLMOD_REAL;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5924
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5925 if (b.rows() < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5926 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5927 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5928 B->x = b.data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5929
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5930 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5931 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5932 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5933 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5934 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5935 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5936 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5937 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5938 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5939
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5940 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5941 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5942 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5943 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5944 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5945 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5946 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5947 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5948 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5949
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5950 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5951 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5952 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5953
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5954 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5955 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5956 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5957 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5958 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5959 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5960 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5961 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5962 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5963
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5964 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5965 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5966
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5967 cholmod_sparse *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5968 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5969 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5970 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5971
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5972 retval = SparseComplexMatrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5973 (static_cast<octave_idx_type>(X->nrow),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5974 static_cast<octave_idx_type>(X->ncol),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5975 static_cast<octave_idx_type>(X->nzmax));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5976 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5977 j <= static_cast<octave_idx_type>(X->ncol); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5978 retval.xcidx(j) = static_cast<octave_idx_type *>(X->p)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5979 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5980 j < static_cast<octave_idx_type>(X->nzmax); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5981 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5982 retval.xridx(j) = static_cast<octave_idx_type *>(X->i)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5983 retval.xdata(j) = static_cast<Complex *>(X->x)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5984 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5985
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5986 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5987 CHOLMOD_NAME(free_sparse) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5988 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5989 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5990 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5991 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5992 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5993 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5994 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5995 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5996 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5997
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5998 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5999 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6000 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6001 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6002
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6003 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6004 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6005 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6006 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6007 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6008 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6009
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6010 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6011 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6012 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6013 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6014 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6015 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6016 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6017 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6018 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6019 const Complex *Ax = data ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6020
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6021 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6022 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6023 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6024 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6025 Bz[i] = 0.;
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6026 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6027 OCTAVE_LOCAL_BUFFER (Complex, Bz, b_nr);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6028 #endif
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6029
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6030 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6031 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6032 octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6033 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6034 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6035
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6036 OCTAVE_LOCAL_BUFFER (Complex, Xx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6037
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6038 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6039 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6040 {
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6041
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6042 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6043 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6044 Bx[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6045
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6046 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6047 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6048 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6049 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6050 reinterpret_cast<double *> (Xx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6051 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6052 Bx, Bz, Numeric, control,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6053 info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6054 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6055 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6056 Bz[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6057
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6058 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap, Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6059 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6060 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6061 reinterpret_cast<double *> (Xx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6062 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6063 reinterpret_cast<double *> (Bz),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6064 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6065 Numeric, control,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6066 info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6067 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6068 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6069 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6070 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6071 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6072
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6073 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6074
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6075 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6076
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6077 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6078 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6079
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6080 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6081 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6082 Complex tmp = Xx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6083 if (tmp != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6084 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6085 if (ii == x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6086 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6087 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6088 octave_idx_type sz = x_nz * (b_nc - j) / b_nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6089 sz = (sz > 10 ? sz : 10) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6090 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6091 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6092 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6093 retval.xdata(ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6094 retval.xridx(ii++) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6095 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6096 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6097 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6098 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6099
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6100 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6101
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6102 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6103
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6104 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6105 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6106 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6107 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6108
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6109 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6110 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6111 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6112 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6113 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6114 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6115 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6116
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6117 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6118 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6119
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6120 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6121 SparseComplexMatrix::fsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6122 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6123 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6124 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6125 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6126 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6127
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6128 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6129 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6130 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6131
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6132 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6133 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6134 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6135 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6136 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6137 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6138 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6139 // Print spparms("spumoni") info if requested
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6140 volatile int typ = mattype.type ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6141 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6142
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6143 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6144 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6145 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6146 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6147 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6148
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6149 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6150 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6151 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6152
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6153 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6154 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6155 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6156 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6157 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6158 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6159 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6160 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6161 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6162 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6163 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6164
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6165 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6166 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6167 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6168
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6169 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6170
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6171 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6172 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6173 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6174 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6175 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6176
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6177 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6178 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6179 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6180 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6181 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6182 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6183 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6184 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6185 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6186 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6187 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6188 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6189 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6190 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6191
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6192 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6193 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6194 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6195 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6196
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6197 cholmod_dense Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6198 cholmod_dense *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6199 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6200 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6201 B->d = B->nrow;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6202 B->nzmax = B->nrow * B->ncol;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6203 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6204 B->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6205 if (nc < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6206 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6207 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6208 // We won't alter it, honest :-)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6209 B->x = const_cast<Complex *>(b.fortran_vec());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6210
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6211 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6212 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6213 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6214 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6215 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6216 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6217 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6218 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6219 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6220
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6221 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6222 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6223 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6224 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6225 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6226 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6227 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6228 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6229 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6230
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6231 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6232 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6233 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6234
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6235 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6236 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6237 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6238 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6239 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6240 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6241 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6242 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6243 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6244
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6245 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6246 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6247
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6248 cholmod_dense *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6249 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6250 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6251 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6252
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6253 retval.resize (b.rows (), b.cols());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6254 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6255 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6256 octave_idx_type jr = j * b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6257 for (octave_idx_type i = 0; i < b.rows(); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6258 retval.xelem(i,j) = static_cast<Complex *>(X->x)[jr + i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6259 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6260
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6261 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6262 CHOLMOD_NAME(free_dense) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6263 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6264 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6265 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6266 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6267 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6268 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6269 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6270 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6271 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6272
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6273 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6274 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6275 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6276 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6277
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6278 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6279 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6280 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6281 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6282 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6283 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6284
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6285 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6286 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6287 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6288 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6289 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6290 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6291 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6292 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6293 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6294 const Complex *Ax = data ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6295 const Complex *Bx = b.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6296
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6297 retval.resize (b_nr, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6298 Complex *Xx = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6299
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6300 for (octave_idx_type j = 0, iidx = 0; j < b_nc; j++, iidx += b_nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6301 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6302 status =
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6303 UMFPACK_ZNAME (solve) (UMFPACK_A, Ap, Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6304 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6305 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6306 reinterpret_cast<double *> (&Xx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6307 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6308 reinterpret_cast<const double *> (&Bx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6309 0, Numeric, control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6310
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6311 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6312 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6313 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6314 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6315
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6316 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6317
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6318 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6319
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6320 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6321 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6322 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6323
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6324 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6325
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6326 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6327 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6328 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6329 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6330
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6331 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6332 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6333 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6334 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6335 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6336 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6337 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6338
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6339 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6340 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6341
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6342 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6343 SparseComplexMatrix::fsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6344 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6345 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6346 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6347 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6348 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6349
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6350 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6351 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6352 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6353
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6354 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6355 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6356 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6357 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6358 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6359 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6360 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6361 // Print spparms("spumoni") info if requested
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6362 volatile int typ = mattype.type ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6363 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6364
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6365 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6366 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6367 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6368 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6369 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6370
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6371 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6372 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6373 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6374
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6375 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6376 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6377 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6378 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6379 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6380 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6381 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6382 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6383 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6384 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6385 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6386
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6387 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6388 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6389 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6390
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6391 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6392
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6393 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6394 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6395 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6396 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6397 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6398
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6399 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6400 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6401 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6402 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6403 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6404 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6405 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6406 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6407 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6408 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6409 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6410 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6411 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6412 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6413
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6414 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6415 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6416 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6417 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6418
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6419 cholmod_sparse Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6420 cholmod_sparse *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6421 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6422 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6423 B->p = b.cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6424 B->i = b.ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6425 B->nzmax = b.nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6426 B->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6427 B->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6428 B->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6429 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6430 B->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6431 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6432 B->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6433 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6434 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6435 B->stype = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6436 B->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6437
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6438 if (b.rows() < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6439 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6440 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6441 B->x = b.data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6442
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6443 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6444 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6445 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6446 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6447 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6448 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6449 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6450 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6451 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6452
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6453 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6454 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6455 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6456 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6457 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6458 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6459 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6460 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6461 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6462
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6463 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6464 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6465 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6466
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6467 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6468 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6469 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6470 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6471 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6472 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6473 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6474 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6475 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6476
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6477 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6478 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6479
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6480 cholmod_sparse *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6481 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6482 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6483 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6484
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6485 retval = SparseComplexMatrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6486 (static_cast<octave_idx_type>(X->nrow),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6487 static_cast<octave_idx_type>(X->ncol),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6488 static_cast<octave_idx_type>(X->nzmax));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6489 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6490 j <= static_cast<octave_idx_type>(X->ncol); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6491 retval.xcidx(j) = static_cast<octave_idx_type *>(X->p)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6492 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6493 j < static_cast<octave_idx_type>(X->nzmax); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6494 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6495 retval.xridx(j) = static_cast<octave_idx_type *>(X->i)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6496 retval.xdata(j) = static_cast<Complex *>(X->x)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6497 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6498
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6499 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6500 CHOLMOD_NAME(free_sparse) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6501 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6502 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6503 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6504 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6505 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6506 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6507 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6508 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6509 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6510
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6511 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6512 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6513 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6514 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6515
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6516 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6517 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6518 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6519 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6520 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6521 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6522
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6523 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6524 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6525 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6526 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6527 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6528 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6529 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6530 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6531 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6532 const Complex *Ax = data ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6533
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6534 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6535
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6536 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6537 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6538 octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6539 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6540 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6541
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6542 OCTAVE_LOCAL_BUFFER (Complex, Xx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6543
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6544 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6545 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6546 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6547 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6548 Bx[i] = b (i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6549
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6550 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6551 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6552 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6553 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6554 reinterpret_cast<double *> (Xx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6555 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6556 reinterpret_cast<double *> (Bx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6557 0, Numeric, control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6558
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6559 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6560 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6561 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6562 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6563
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6564 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6565
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6566 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6567
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6568 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6569 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6570
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6571 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6572 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6573 Complex tmp = Xx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6574 if (tmp != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6575 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6576 if (ii == x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6577 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6578 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6579 octave_idx_type sz = x_nz * (b_nc - j) / b_nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6580 sz = (sz > 10 ? sz : 10) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6581 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6582 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6583 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6584 retval.xdata(ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6585 retval.xridx(ii++) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6586 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6587 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6588 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6589 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6590
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6591 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6592
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6593 rcond = Info (UMFPACK_RCOND);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6594 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6595
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6596 if (status == UMFPACK_WARNING_singular_matrix \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6597 rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6598 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6599 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6600
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6601 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6602 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6603 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6604 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6605 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6606 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6607
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6608 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6609
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6610 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6611
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6612 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6613 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6614 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6615 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6616
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6617 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6618 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6619 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6620 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6621 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6622 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6623 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6624
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6625 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6626 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6627
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6628 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6629 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6630 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6631 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6632 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6633 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6634 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6635
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6636 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6637 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6638 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6639 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6640 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6641 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6642 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6643
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6644 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6645 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6646 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6647 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6648 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6649 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6650
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6651 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6652 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6653 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6654 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6655 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6656 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6657 ComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6658 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6659
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6660 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6661 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6662
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6663 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6664 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6665 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6666 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6667 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6668 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6669 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6670 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6671 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6672 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6673 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6674 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6675 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6676 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6677 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6678 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6679 return ComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6680 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6681
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6682 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6683 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6684 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6685 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6686 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6687 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6688 retval = dmsolve<ComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6689 Matrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6690 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6691 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6692
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6693 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6694 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6695
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6696 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6697 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6698 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6699 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6700 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6701 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6702 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6703
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6704 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6705 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6706 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6707 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6708 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6709 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6710 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6711
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6712 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6713 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6714 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6715 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6716 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6717 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6718
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6719 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6720 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6721 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6722 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6723 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6724 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6725 SparseComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6726 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6727
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6728 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6729 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6730
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6731 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6732 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6733 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6734 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6735 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6736 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6737 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6738 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6739 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6740 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6741 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6742 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6743 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6744 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6745 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6746 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6747 return SparseComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6748 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6749
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6750 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6751 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6752 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6753 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6754 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6755 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6756 retval = dmsolve<SparseComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6757 SparseMatrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6758 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6759 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6760
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6761 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6762 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6763
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6764 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6765 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6766 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6767 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6768 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6769 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6770 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6771
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6772 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6773 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6774 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6775 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6776 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6777 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6778 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6779
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6780 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6781 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6782 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6783 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6784 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6785 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6786
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6787 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6788 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6789 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6790 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6791 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6792 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6793 ComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6794 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6795
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6796 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6797 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6798
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6799 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6800 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6801 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6802 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6803 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6804 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6805 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6806 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6807 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6808 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6809 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6810 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6811 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6812 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6813 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6814 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6815 return ComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6816 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6817
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6818 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6819 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6820 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6821 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6822 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6823 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6824 retval = dmsolve<ComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6825 ComplexMatrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6826 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6827 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6828
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6829 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6830 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6831
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6832 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6833 SparseComplexMatrix::solve (MatrixType &mattype,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6834 const SparseComplexMatrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6835 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6836 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6837 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6838 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6839 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6840
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6841 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6842 SparseComplexMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6843 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6844 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6845 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6846 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6847 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6848
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6849 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6850 SparseComplexMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6851 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6852 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6853 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6854 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6855
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6856 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6857 SparseComplexMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6858 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6859 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6860 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6861 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6862 SparseComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6863 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6864
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6865 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6866 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6867
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6868 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6869 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6870 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6871 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6872 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6873 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6874 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6875 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6876 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6877 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6878 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6879 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6880 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6881 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6882 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6883 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6884 return SparseComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6885 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6886
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6887 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6888 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6889 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6890 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6891 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6892 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6893 retval = dmsolve<SparseComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6894 SparseComplexMatrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6895 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6896 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6897
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6898 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6899 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6900
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6901 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6902 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6903 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6904 octave_idx_type info; double rcond;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6905 return solve (mattype, b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6906 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6907
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6908 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6909 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6910 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6911 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6912 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6913 return solve (mattype, b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6914 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6915
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6916 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6917 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6918 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6919 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6920 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6921 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6922
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6923 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6924 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6925 octave_idx_type& info, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6926 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6927 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6928 Matrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6929 return solve (mattype, tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6930 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6931
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6932 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6933 SparseComplexMatrix::solve (MatrixType &mattype,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6934 const ComplexColumnVector& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6935 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6936 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6937 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6938 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6939 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6940
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6941 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6942 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6943 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6944 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6945 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6946 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6947 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6948
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6949 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6950 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6951 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6952 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6953 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6954 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6955
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6956 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6957 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6958 octave_idx_type& info, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6959 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6960 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6961 ComplexMatrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6962 return solve (mattype, tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6963 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6964
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6965 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6966 SparseComplexMatrix::solve (const Matrix& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6967 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6968 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6969 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6970 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6971 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6972
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6973 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6974 SparseComplexMatrix::solve (const Matrix& b, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6975 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6976 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6977 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6978 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6979
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6980 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6981 SparseComplexMatrix::solve (const Matrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6982 double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6983 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6984 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6985 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6986
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6987 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6988 SparseComplexMatrix::solve (const Matrix& b, octave_idx_type& err,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6989 double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6990 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6991 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6992 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6993 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6994 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6995
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6996 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6997 SparseComplexMatrix::solve (const SparseMatrix& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6998 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6999 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7000 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7001 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7002 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7003
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7004 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7005 SparseComplexMatrix::solve (const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7006 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7007 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7008 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7009 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7010 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7011
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7012 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7013 SparseComplexMatrix::solve (const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7014 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7015 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7016 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7017 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7018
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7019 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7020 SparseComplexMatrix::solve (const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7021 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7022 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7023 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	7024 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7025 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7026 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7027
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7028 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7029 SparseComplexMatrix::solve (const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7030 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7031 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7032 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7033 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7034 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7035
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7036 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7037 SparseComplexMatrix::solve (const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7038 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7039 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7040 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7041 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7042
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7043 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7044 SparseComplexMatrix::solve (const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7045 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7046 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7047 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	7048 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7049 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7050 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7051
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7052 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7053 SparseComplexMatrix::solve (const SparseComplexMatrix& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7054 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7055 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7056 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7057 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7058 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7059
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7060 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7061 SparseComplexMatrix::solve (const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7062 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7063 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7064 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7065 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7066 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7067
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7068 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7069 SparseComplexMatrix::solve (const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7070 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7071 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7072 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7073 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7074
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7075 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7076 SparseComplexMatrix::solve (const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7077 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7078 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7079 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	7080 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7081 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7082 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7083
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7084 ComplexColumnVector
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7085 SparseComplexMatrix::solve (const ColumnVector& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7086 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7087 octave_idx_type info; double rcond;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7088 return solve (b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7089 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7090
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7091 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7092 SparseComplexMatrix::solve (const ColumnVector& b, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7093 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7094 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7095 return solve (b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7096 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7097
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7098 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7099 SparseComplexMatrix::solve (const ColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7100 double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7101 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7102 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7103 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7104
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7105 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7106 SparseComplexMatrix::solve (const ColumnVector& b, octave_idx_type& info, double& rcond,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7107 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7108 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7109 Matrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7110 return solve (tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7111 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7112
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7113 ComplexColumnVector
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7114 SparseComplexMatrix::solve (const ComplexColumnVector& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7115 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7116 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7117 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7118 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7119 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7120
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7121 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7122 SparseComplexMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7123 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7124 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7125 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7126 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7127
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7128 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7129 SparseComplexMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7130 double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7131 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7132 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7133 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7134
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7135 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7136 SparseComplexMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7137 double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7138 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7139 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7140 ComplexMatrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7141 return solve (tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7142 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7143
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7144 // unary operations
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7145 SparseBoolMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7146 SparseComplexMatrix::operator ! (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7147 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7148 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7149 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7150 octave_idx_type nz1 = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7151 octave_idx_type nz2 = nr*nc - nz1;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7152
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7153 SparseBoolMatrix r (nr, nc, nz2);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7154
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7155 octave_idx_type ii = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7156 octave_idx_type jj = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7157 r.cidx (0) = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7158 for (octave_idx_type i = 0; i < nc; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7159 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7160 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7161 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7162 if (jj < cidx(i+1) && ridx(jj) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7163 jj++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7164 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7165 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7166 r.data(ii) = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7167 r.ridx(ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7168 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7169 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7170 r.cidx (i+1) = ii;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7171 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7172
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7173 return r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7174 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7175
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7176 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7177 SparseComplexMatrix::squeeze (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7178 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7179 return MSparse<Complex>::squeeze ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7180 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7181
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7182 SparseComplexMatrix
10421 99e9bae2d81e improve sparse indexing interface Jaroslav Hajek <highegg@gmail.com> parents: 10350 diff changeset	7183 SparseComplexMatrix::index (const idx_vector& i, bool resize_ok) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7184 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7185 return MSparse<Complex>::index (i, resize_ok);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7186 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7187
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7188 SparseComplexMatrix
10421 99e9bae2d81e improve sparse indexing interface Jaroslav Hajek <highegg@gmail.com> parents: 10350 diff changeset	7189 SparseComplexMatrix::index (const idx_vector& i, const idx_vector& j, bool resize_ok) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7190 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7191 return MSparse<Complex>::index (i, j, resize_ok);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7192 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7193
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7194 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7195 SparseComplexMatrix::reshape (const dim_vector& new_dims) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7196 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7197 return MSparse<Complex>::reshape (new_dims);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7198 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7199
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7200 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7201 SparseComplexMatrix::permute (const Array<octave_idx_type>& vec, bool inv) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7202 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7203 return MSparse<Complex>::permute (vec, inv);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7204 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7205
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7206 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7207 SparseComplexMatrix::ipermute (const Array<octave_idx_type>& vec) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7208 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7209 return MSparse<Complex>::ipermute (vec);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7210 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7211
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7212 // other operations
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7213
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7214 bool
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7215 SparseComplexMatrix::any_element_is_nan (void) const
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7216 {
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7217 octave_idx_type nel = nnz ();
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7218
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7219 for (octave_idx_type i = 0; i < nel; i++)
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7220 {
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7221 Complex val = data (i);
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7222 if (xisnan (val))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7223 return true;
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7224 }
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7225
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7226 return false;
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7227 }
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7228
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7229 bool
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7230 SparseComplexMatrix::any_element_is_inf_or_nan (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7231 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7232 octave_idx_type nel = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7233
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7234 for (octave_idx_type i = 0; i < nel; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7235 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7236 Complex val = data (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7237 if (xisinf (val) \|\| xisnan (val))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7238 return true;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7239 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7240
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7241 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7242 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7243
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7244 // Return true if no elements have imaginary components.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7245
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7246 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7247 SparseComplexMatrix::all_elements_are_real (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7248 {
9825 7483fe200fab narrow complex values with negative zero imaginary parts Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	7249 return mx_inline_all_real (nnz (), data ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7250 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7251
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7252 // Return nonzero if any element of CM has a non-integer real or
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7253 // imaginary part. Also extract the largest and smallest (real or
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7254 // imaginary) values and return them in MAX_VAL and MIN_VAL.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7255
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7256 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7257 SparseComplexMatrix::all_integers (double& max_val, double& min_val) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7258 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7259 octave_idx_type nel = nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7260
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7261 if (nel == 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7262 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7263
5261 90a9058de7e8 [project @ 2005-03-31 02:48:38 by jwe] jwe parents: 5203 diff changeset	7264 max_val = std::real(data (0));
90a9058de7e8 [project @ 2005-03-31 02:48:38 by jwe] jwe parents: 5203 diff changeset	7265 min_val = std::real(data (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7266
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7267 for (octave_idx_type i = 0; i < nel; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7268 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7269 Complex val = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7270
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7271 double r_val = std::real (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7272 double i_val = std::imag (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7273
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7274 if (r_val > max_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7275 max_val = r_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7276
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7277 if (i_val > max_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7278 max_val = i_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7279
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7280 if (r_val < min_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7281 min_val = r_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7282
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7283 if (i_val < min_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7284 min_val = i_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7285
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7286 if (D_NINT (r_val) != r_val \|\| D_NINT (i_val) != i_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7287 return false;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7288 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7289
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7290 return true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7291 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7292
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7293 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7294 SparseComplexMatrix::too_large_for_float (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7295 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7296 octave_idx_type nel = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7297
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7298 for (octave_idx_type i = 0; i < nel; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7299 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7300 Complex val = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7301
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7302 double r_val = std::real (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7303 double i_val = std::imag (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7304
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7305 if (r_val > FLT_MAX
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7306 \|\| i_val > FLT_MAX
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7307 \|\| r_val < FLT_MIN
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7308 \|\| i_val < FLT_MIN)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7309 return true;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7310 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7311
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7312 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7313 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7314
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5760 diff changeset	7315 // FIXME Do these really belong here? Maybe they should be
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7316 // in a base class?
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7317
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7318 SparseBoolMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7319 SparseComplexMatrix::all (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7320 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7321 SPARSE_ALL_OP (dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7322 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7323
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7324 SparseBoolMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7325 SparseComplexMatrix::any (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7326 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7327 SPARSE_ANY_OP (dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7328 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7329
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7330 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7331 SparseComplexMatrix::cumprod (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7332 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7333 SPARSE_CUMPROD (SparseComplexMatrix, Complex, cumprod);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7334 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7335
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7336 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7337 SparseComplexMatrix::cumsum (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7338 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7339 SPARSE_CUMSUM (SparseComplexMatrix, Complex, cumsum);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7340 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7341
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7342 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7343 SparseComplexMatrix::prod (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7344 {
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7345 if ((rows() == 1 && dim == -1) \|\| dim == 1)
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7346 return transpose (). prod (0). transpose();
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7347 else
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7348 {
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7349 SPARSE_REDUCTION_OP (SparseComplexMatrix, Complex, *=,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7350 (cidx(j+1) - cidx(j) < nr ? 0.0 : 1.0), 1.0);
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7351 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7352 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7353
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7354 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7355 SparseComplexMatrix::sum (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7356 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7357 SPARSE_REDUCTION_OP (SparseComplexMatrix, Complex, +=, 0.0, 0.0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7358 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7359
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7360 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7361 SparseComplexMatrix::sumsq (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7362 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7363 #define ROW_EXPR \
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7364 Complex d = data (i); \
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7365 tmp [ridx(i)] += d * conj (d)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7366
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7367 #define COL_EXPR \
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7368 Complex d = data (i); \
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7369 tmp [j] += d * conj (d)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7370
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7371 SPARSE_BASE_REDUCTION_OP (SparseComplexMatrix, Complex, ROW_EXPR,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7372 COL_EXPR, 0.0, 0.0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7373
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7374 #undef ROW_EXPR
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7375 #undef COL_EXPR
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7376 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7377
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7378 SparseMatrix SparseComplexMatrix::abs (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7379 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7380 octave_idx_type nz = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7381 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7382
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7383 SparseMatrix retval (rows(), nc, nz);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7384
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7385 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7386 retval.cidx (i) = cidx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7387
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7388 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7389 {
5261 90a9058de7e8 [project @ 2005-03-31 02:48:38 by jwe] jwe parents: 5203 diff changeset	7390 retval.data (i) = std::abs (data (i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7391 retval.ridx (i) = ridx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7392 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7393
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7394 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7395 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7396
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7397 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7398 SparseComplexMatrix::diag (octave_idx_type k) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7399 {
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7602 diff changeset	7400 return MSparse<Complex>::diag (k);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7401 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7402
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7403 std::ostream&
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7404 operator << (std::ostream& os, const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7405 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7406 octave_idx_type nc = a.cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7407
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7408 // add one to the printed indices to go from
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7409 // zero-based to one-based arrays
10550 c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7410 for (octave_idx_type j = 0; j < nc; j++)
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7411 {
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7412 octave_quit ();
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7413 for (octave_idx_type i = a.cidx(j); i < a.cidx(j+1); i++)
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7414 {
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7415 os << a.ridx(i) + 1 << " " << j + 1 << " ";
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7416 octave_write_complex (os, a.data(i));
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7417 os << "\n";
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7418 }
c48b7048e720 style fixes John W. Eaton <jwe@octave.org> parents: 10521 diff changeset	7419 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7420
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7421 return os;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7422 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7423
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7424 std::istream&
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7425 operator >> (std::istream& is, SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7426 {
9469 c6edba80dfae sanity checks for loading sparse matrices John W. Eaton <jwe@octave.org> parents: 9417 diff changeset	7427 typedef SparseComplexMatrix::element_type elt_type;
c6edba80dfae sanity checks for loading sparse matrices John W. Eaton <jwe@octave.org> parents: 9417 diff changeset	7428
c6edba80dfae sanity checks for loading sparse matrices John W. Eaton <jwe@octave.org> parents: 9417 diff changeset	7429 return read_sparse_matrix<elt_type> (is, a, octave_read_value<Complex>);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7430 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7431
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7432 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7433 operator * (const SparseComplexMatrix& m, const SparseMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7434 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7435 SPARSE_SPARSE_MUL (SparseComplexMatrix, Complex, double);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7436 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7437
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7438 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7439 operator * (const SparseMatrix& m, const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7440 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7441 SPARSE_SPARSE_MUL (SparseComplexMatrix, Complex, Complex);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7442 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7443
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7444 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7445 operator * (const SparseComplexMatrix& m, const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7446 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7447 SPARSE_SPARSE_MUL (SparseComplexMatrix, Complex, Complex);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7448 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7449
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7450 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7451 operator * (const ComplexMatrix& m, const SparseMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7452 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7453 FULL_SPARSE_MUL (ComplexMatrix, double, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7454 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7455
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7456 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7457 operator * (const Matrix& m, const SparseComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7458 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7459 FULL_SPARSE_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7460 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7461
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7462 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7463 operator * (const ComplexMatrix& m, const SparseComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7464 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7465 FULL_SPARSE_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7466 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7467
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7468 ComplexMatrix
7802 1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7469 mul_trans (const ComplexMatrix& m, const SparseComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7470 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7471 FULL_SPARSE_MUL_TRANS (ComplexMatrix, Complex, Complex (0.,0.), );
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7472 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7473
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7474 ComplexMatrix
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7475 mul_herm (const ComplexMatrix& m, const SparseComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7476 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7477 FULL_SPARSE_MUL_TRANS (ComplexMatrix, Complex, Complex (0.,0.), conj);
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7478 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7479
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7480 ComplexMatrix
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7481 operator * (const SparseComplexMatrix& m, const Matrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7482 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7483 SPARSE_FULL_MUL (ComplexMatrix, double, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7484 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7485
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7486 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7487 operator * (const SparseMatrix& m, const ComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7488 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7489 SPARSE_FULL_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7490 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7491
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7492 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7493 operator * (const SparseComplexMatrix& m, const ComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7494 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7495 SPARSE_FULL_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7496 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7497
7802 1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7498 ComplexMatrix
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7499 trans_mul (const SparseComplexMatrix& m, const ComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7500 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7501 SPARSE_FULL_TRANS_MUL (ComplexMatrix, Complex, Complex (0.,0.), );
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7502 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7503
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7504 ComplexMatrix
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7505 herm_mul (const SparseComplexMatrix& m, const ComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7506 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7507 SPARSE_FULL_TRANS_MUL (ComplexMatrix, Complex, Complex (0.,0.), conj);
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7508 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7509
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7510 // diag * sparse and sparse * diag
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7511 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7512 operator * (const DiagMatrix& d, const SparseComplexMatrix& a)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7513 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7514 return do_mul_dm_sm<SparseComplexMatrix> (d, a);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7515 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7516 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7517 operator * (const SparseComplexMatrix& a, const DiagMatrix& d)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7518 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7519 return do_mul_sm_dm<SparseComplexMatrix> (a, d);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7520 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7521
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7522 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7523 operator * (const ComplexDiagMatrix& d, const SparseMatrix& a)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7524 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7525 return do_mul_dm_sm<SparseComplexMatrix> (d, a);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7526 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7527 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7528 operator * (const SparseMatrix& a, const ComplexDiagMatrix& d)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7529 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7530 return do_mul_sm_dm<SparseComplexMatrix> (a, d);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7531 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7532
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7533 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7534 operator * (const ComplexDiagMatrix& d, const SparseComplexMatrix& a)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7535 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7536 return do_mul_dm_sm<SparseComplexMatrix> (d, a);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7537 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7538 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7539 operator * (const SparseComplexMatrix& a, const ComplexDiagMatrix& d)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7540 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7541 return do_mul_sm_dm<SparseComplexMatrix> (a, d);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7542 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7543
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7544 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7545 operator + (const ComplexDiagMatrix& d, const SparseMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7546 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7547 return do_add_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7548 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7549 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7550 operator + (const DiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7551 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7552 return do_add_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7553 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7554 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7555 operator + (const ComplexDiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7556 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7557 return do_add_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7558 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7559 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7560 operator + (const SparseMatrix& a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7561 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7562 return do_add_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7563 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7564 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7565 operator + (const SparseComplexMatrix& a, const DiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7566 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7567 return do_add_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7568 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7569 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7570 operator + (const SparseComplexMatrix&a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7571 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7572 return do_add_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7573 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7574
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7575 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7576 operator - (const ComplexDiagMatrix& d, const SparseMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7577 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7578 return do_sub_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7579 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7580 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7581 operator - (const DiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7582 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7583 return do_sub_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7584 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7585 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7586 operator - (const ComplexDiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7587 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7588 return do_sub_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7589 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7590 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7591 operator - (const SparseMatrix& a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7592 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7593 return do_sub_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7594 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7595 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7596 operator - (const SparseComplexMatrix& a, const DiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7597 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7598 return do_sub_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7599 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7600 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7601 operator - (const SparseComplexMatrix&a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7602 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7603 return do_sub_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7604 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7605
8968 91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7606 // perm * sparse and sparse * perm
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7607
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7608 SparseComplexMatrix
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7609 operator * (const PermMatrix& p, const SparseComplexMatrix& a)
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7610 {
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7611 return octinternal_do_mul_pm_sm (p, a);
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7612 }
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7613
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7614 SparseComplexMatrix
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7615 operator * (const SparseComplexMatrix& a, const PermMatrix& p)
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7616 {
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7617 return octinternal_do_mul_sm_pm (a, p);
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7618 }
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7619
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5760 diff changeset	7620 // FIXME -- it would be nice to share code among the min/max
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7621 // functions below.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7622
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7623 #define EMPTY_RETURN_CHECK(T) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7624 if (nr == 0 \|\| nc == 0) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7625 return T (nr, nc);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7626
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7627 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7628 min (const Complex& c, const SparseComplexMatrix& m)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7629 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7630 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7631
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7632 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7633 octave_idx_type nc = m.columns ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7634
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7635 EMPTY_RETURN_CHECK (SparseComplexMatrix);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7636
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7637 if (abs(c) == 0.)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7638 return SparseComplexMatrix (nr, nc);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7639 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7640 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7641 result = SparseComplexMatrix (m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7642
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7643 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7644 for (octave_idx_type i = m.cidx(j); i < m.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7645 result.data(i) = xmin(c, m.data(i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7646 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7647
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7648 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7649 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7650
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7651 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7652 min (const SparseComplexMatrix& m, const Complex& c)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7653 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7654 return min (c, m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7655 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7656
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7657 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7658 min (const SparseComplexMatrix& a, const SparseComplexMatrix& b)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7659 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7660 SparseComplexMatrix r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7661
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7662 if ((a.rows() == b.rows()) && (a.cols() == b.cols()))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7663 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7664 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7665 octave_idx_type a_nc = a.cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7666
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7667 octave_idx_type b_nr = b.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7668 octave_idx_type b_nc = b.cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7669
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7670 if (a_nr == 0 \|\| b_nc == 0 \|\| a.nnz () == 0 \|\| b.nnz () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7671 return SparseComplexMatrix (a_nr, a_nc);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7672
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7673 if (a_nr != b_nr \|\| a_nc != b_nc)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7674 gripe_nonconformant ("min", a_nr, a_nc, b_nr, b_nc);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7675 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7676 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7677 r = SparseComplexMatrix (a_nr, a_nc, (a.nnz () + b.nnz ()));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7678
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7679 octave_idx_type jx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7680 r.cidx (0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7681 for (octave_idx_type i = 0 ; i < a_nc ; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7682 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7683 octave_idx_type ja = a.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7684 octave_idx_type ja_max = a.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7685 bool ja_lt_max= ja < ja_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7686
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7687 octave_idx_type jb = b.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7688 octave_idx_type jb_max = b.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7689 bool jb_lt_max = jb < jb_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7690
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7691 while (ja_lt_max \|\| jb_lt_max )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7692 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7693 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7694 if ((! jb_lt_max) \|\|
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7695 (ja_lt_max && (a.ridx(ja) < b.ridx(jb))))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7696 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7697 Complex tmp = xmin (a.data(ja), 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7698 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7699 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7700 r.ridx(jx) = a.ridx(ja);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7701 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7702 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7703 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7704 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7705 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7706 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7707 else if (( !ja_lt_max ) \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7708 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7709 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7710 Complex tmp = xmin (0., b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7711 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7712 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7713 r.ridx(jx) = b.ridx(jb);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7714 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7715 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7716 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7717 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7718 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7719 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7720 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7721 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7722 Complex tmp = xmin (a.data(ja), b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7723 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7724 {
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7725 r.data(jx) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7726 r.ridx(jx) = a.ridx(ja);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7727 jx++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7728 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7729 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7730 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7731 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7732 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7733 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7734 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7735 r.cidx(i+1) = jx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7736 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7737
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7738 r.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7739 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7740 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7741 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7742 (*current_liboctave_error_handler) ("matrix size mismatch");
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7743
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7744 return r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7745 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7746
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7747 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7748 max (const Complex& c, const SparseComplexMatrix& m)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7749 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7750 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7751
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7752 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7753 octave_idx_type nc = m.columns ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7754
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7755 EMPTY_RETURN_CHECK (SparseComplexMatrix);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7756
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7757 // Count the number of non-zero elements
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7758 if (xmax(c, 0.) != 0.)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7759 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7760 result = SparseComplexMatrix (nr, nc, c);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7761 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7762 for (octave_idx_type i = m.cidx(j); i < m.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7763 result.xdata(m.ridx(i) + j * nr) = xmax (c, m.data(i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7764 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7765 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7766 result = SparseComplexMatrix (m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7767
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7768 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7769 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7770
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7771 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7772 max (const SparseComplexMatrix& m, const Complex& c)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7773 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7774 return max (c, m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7775 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7776
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7777 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7778 max (const SparseComplexMatrix& a, const SparseComplexMatrix& b)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7779 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7780 SparseComplexMatrix r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7781
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7782 if ((a.rows() == b.rows()) && (a.cols() == b.cols()))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7783 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7784 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7785 octave_idx_type a_nc = a.cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7786
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7787 octave_idx_type b_nr = b.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7788 octave_idx_type b_nc = b.cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7789
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7790 if (a_nr == 0 \|\| b_nc == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7791 return SparseComplexMatrix (a_nr, a_nc);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7792 if (a.nnz () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7793 return SparseComplexMatrix (b);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7794 if (b.nnz () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7795 return SparseComplexMatrix (a);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7796
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7797 if (a_nr != b_nr \|\| a_nc != b_nc)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7798 gripe_nonconformant ("min", a_nr, a_nc, b_nr, b_nc);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7799 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7800 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7801 r = SparseComplexMatrix (a_nr, a_nc, (a.nnz () + b.nnz ()));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7802
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7803 octave_idx_type jx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7804 r.cidx (0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7805 for (octave_idx_type i = 0 ; i < a_nc ; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7806 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7807 octave_idx_type ja = a.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7808 octave_idx_type ja_max = a.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7809 bool ja_lt_max= ja < ja_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7810
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7811 octave_idx_type jb = b.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7812 octave_idx_type jb_max = b.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7813 bool jb_lt_max = jb < jb_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7814
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7815 while (ja_lt_max \|\| jb_lt_max )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7816 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7817 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7818 if ((! jb_lt_max) \|\|
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7819 (ja_lt_max && (a.ridx(ja) < b.ridx(jb))))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7820 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7821 Complex tmp = xmax (a.data(ja), 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7822 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7823 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7824 r.ridx(jx) = a.ridx(ja);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7825 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7826 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7827 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7828 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7829 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7830 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7831 else if (( !ja_lt_max ) \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7832 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7833 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7834 Complex tmp = xmax (0., b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7835 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7836 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7837 r.ridx(jx) = b.ridx(jb);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7838 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7839 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7840 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7841 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7842 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7843 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7844 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7845 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7846 Complex tmp = xmax (a.data(ja), b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7847 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7848 {
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7849 r.data(jx) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7850 r.ridx(jx) = a.ridx(ja);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7851 jx++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7852 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7853 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7854 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7855 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7856 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7857 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7858 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7859 r.cidx(i+1) = jx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7860 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7861
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7862 r.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7863 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7864 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7865 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7866 (*current_liboctave_error_handler) ("matrix size mismatch");
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7867
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7868 return r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7869 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7870
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7871 SPARSE_SMS_CMP_OPS (SparseComplexMatrix, 0.0, real, Complex,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7872 0.0, real)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7873 SPARSE_SMS_BOOL_OPS (SparseComplexMatrix, Complex, 0.0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7874
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7875 SPARSE_SSM_CMP_OPS (Complex, 0.0, real, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7876 0.0, real)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7877 SPARSE_SSM_BOOL_OPS (Complex, SparseComplexMatrix, 0.0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7878
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7879 SPARSE_SMSM_CMP_OPS (SparseComplexMatrix, 0.0, real, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7880 0.0, real)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7881 SPARSE_SMSM_BOOL_OPS (SparseComplexMatrix, SparseComplexMatrix, 0.0)

Mercurial > octave-nkf

annotate liboctave/CSparse.cc @ 10550:c48b7048e720