octave: liboctave/numeric/EIG.cc annotate

annotate liboctave/numeric/EIG.cc @ 21136:7cac4e7458f2

maint: clean up code around calls to current_liboctave_error_handler. Remove statements after call to handler that are no longer reachable. Place input validation first and immediately call handler if necessary. Change if/error_handler/else to if/error_handler and re-indent code. * Array-util.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc, CRowVector.cc, CSparse.cc, DiagArray2.cc, MArray.cc, PermMatrix.cc, Sparse.cc, Sparse.h, chMatrix.cc, chNDArray.cc, dColVector.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc, CmplxLU.cc, CmplxQR.cc, CmplxSCHUR.cc, CmplxSVD.cc, DASPK.cc, EIG.cc, LSODE.cc, Quad.cc, SparseCmplxCHOL.cc, SparseCmplxLU.cc, SparseCmplxQR.cc, SparseQR.cc, SparsedbleCHOL.cc, SparsedbleLU.cc, base-lu.cc, bsxfun-defs.cc, dbleAEPBAL.cc, dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc, dbleSCHUR.cc, dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc, fCmplxCHOL.cc, fCmplxLU.cc, fCmplxQR.cc, fCmplxSCHUR.cc, fEIG.cc, floatAEPBAL.cc, floatCHOL.cc, floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc, floatSCHUR.cc, floatSVD.cc, lo-specfun.cc, oct-fftw.cc, oct-rand.cc, oct-spparms.cc, sparse-base-chol.cc, sparse-dmsolve.cc, file-ops.cc, lo-sysdep.cc, mach-info.cc, oct-env.cc, oct-syscalls.cc, cmd-edit.cc, cmd-hist.cc, data-conv.cc, lo-ieee.cc, lo-regexp.cc, oct-base64.cc, oct-shlib.cc, pathsearch.cc, singleton-cleanup.cc, sparse-util.cc, unwind-prot.cc: Remove statements after call to handler that are no longer reachable. Place input validation first and immediately call handler if necessary. Change if/error_handler/else to if/error_handler and re-indent code.

author	Rik <rik@octave.org>
date	Sat, 23 Jan 2016 13:52:03 -0800
parents	ff904ae0285b
children	f7121e111991

rev	line source
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	1 /*
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	2
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 17769 diff changeset	3 Copyright (C) 1994-2015 John W. Eaton
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	4
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	5 This file is part of Octave.
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	6
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	8 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: 5822 diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5822 diff changeset	10 option) any later version.
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	11
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	15 for more details.
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	16
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	17 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: 5822 diff changeset	18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5822 diff changeset	19 <http://www.gnu.org/licenses/>.
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	20
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	21 */
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	22
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	23 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1011 diff changeset	24 #include <config.h>
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	25 #endif
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	26
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	27 #include "EIG.h"
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	28 #include "dColVector.h"
1847 2ffe49eb95a5 [project @ 1996-02-03 12:47:55 by jwe] jwe parents: 1368 diff changeset	29 #include "f77-fcn.h"
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	30 #include "lo-error.h"
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	31
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	32 extern "C"
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	33 {
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	34 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	35 F77_FUNC (dgeev, DGEEV) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	36 F77_CONST_CHAR_ARG_DECL,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	37 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	38 const octave_idx_type&, double, double,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	39 double, const octave_idx_type&, double,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	40 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	41 const octave_idx_type&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	42 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	43 F77_CHAR_ARG_LEN_DECL);
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	44
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	45 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	46 F77_FUNC (zgeev, ZGEEV) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	47 F77_CONST_CHAR_ARG_DECL,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	48 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	49 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	50 Complex, const octave_idx_type&, Complex,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	51 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	52 const octave_idx_type&, double*, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	53 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	54 F77_CHAR_ARG_LEN_DECL);
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	55
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	56 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	57 F77_FUNC (dsyev, DSYEV) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	58 F77_CONST_CHAR_ARG_DECL,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	59 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	60 const octave_idx_type&, double, double,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	61 const octave_idx_type&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	62 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	63 F77_CHAR_ARG_LEN_DECL);
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	64
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	65 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	66 F77_FUNC (zheev, ZHEEV) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	67 F77_CONST_CHAR_ARG_DECL,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	68 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	69 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	70 Complex, const octave_idx_type&, double,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	71 octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	72 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	73 F77_CHAR_ARG_LEN_DECL);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	74
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	75 F77_RET_T
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	76 F77_FUNC (dpotrf, DPOTRF) (F77_CONST_CHAR_ARG_DECL,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	77 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	78 const octave_idx_type&, octave_idx_type&
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	79 F77_CHAR_ARG_LEN_DECL
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	80 F77_CHAR_ARG_LEN_DECL);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	81
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	82 F77_RET_T
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	83 F77_FUNC (zpotrf, ZPOTRF) (F77_CONST_CHAR_ARG_DECL,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	84 const octave_idx_type&,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	85 Complex*, const octave_idx_type&,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	86 octave_idx_type&
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	87 F77_CHAR_ARG_LEN_DECL
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	88 F77_CHAR_ARG_LEN_DECL);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	89
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	90 F77_RET_T
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	91 F77_FUNC (dggev, DGGEV) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	92 F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	93 const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	94 double*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	95 double*, const octave_idx_type&,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	96 double, double, double , double,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	97 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	98 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	99 const octave_idx_type&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	100 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	101 F77_CHAR_ARG_LEN_DECL);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	102
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	103 F77_RET_T
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	104 F77_FUNC (dsygv, DSYGV) (const octave_idx_type&,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11495 diff changeset	105 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11495 diff changeset	106 F77_CONST_CHAR_ARG_DECL,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	107 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	108 const octave_idx_type&, double*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	109 const octave_idx_type&, double, double,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	110 const octave_idx_type&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	111 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	112 F77_CHAR_ARG_LEN_DECL);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	113
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	114 F77_RET_T
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	115 F77_FUNC (zggev, ZGGEV) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	116 F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	117 const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	118 Complex*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	119 Complex*, const octave_idx_type&,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	120 Complex, Complex, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	121 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	122 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	123 const octave_idx_type&, double*, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	124 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	125 F77_CHAR_ARG_LEN_DECL);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	126
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	127 F77_RET_T
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	128 F77_FUNC (zhegv, ZHEGV) (const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	129 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	130 F77_CONST_CHAR_ARG_DECL,
11495 8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	131 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	132 const octave_idx_type&, Complex*,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	133 const octave_idx_type&, double, Complex,
8a5e980da6aa style fixes John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	134 const octave_idx_type&, double*, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	135 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	136 F77_CHAR_ARG_LEN_DECL);
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	137 }
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	138
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	139 octave_idx_type
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	140 EIG::init (const Matrix& a, bool calc_ev)
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	141 {
5822 4fdc2515ebad [project @ 2006-05-18 19:31:36 by jwe] jwe parents: 5307 diff changeset	142 if (a.any_element_is_inf_or_nan ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	143 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	144 ("EIG: matrix contains Inf or NaN values");
5822 4fdc2515ebad [project @ 2006-05-18 19:31:36 by jwe] jwe parents: 5307 diff changeset	145
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	146 if (a.is_symmetric ())
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	147 return symmetric_init (a, calc_ev);
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	148
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	149 octave_idx_type n = a.rows ();
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	150
0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	151 if (n != a.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	152 (*current_liboctave_error_handler) ("EIG requires square matrix");
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	153
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	154 octave_idx_type info = 0;
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	155
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	156 Matrix atmp = a;
0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	157 double *tmp_data = atmp.fortran_vec ();
0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	158
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	159 Array<double> wr (dim_vector (n, 1));
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	160 double *pwr = wr.fortran_vec ();
0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	161
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	162 Array<double> wi (dim_vector (n, 1));
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	163 double *pwi = wi.fortran_vec ();
0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	164
9020 728e7943752d EIG.cc: avoid volatile decl for tmp variable John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	165 octave_idx_type tnvr = calc_ev ? n : 0;
728e7943752d EIG.cc: avoid volatile decl for tmp variable John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	166 Matrix vr (tnvr, tnvr);
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	167 double *pvr = vr.fortran_vec ();
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	168
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	169 octave_idx_type lwork = -1;
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	170 double dummy_work;
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	171
1365 9b2654476502 [project @ 1995-09-05 23:44:41 by jwe] jwe parents: 1315 diff changeset	172 double *dummy = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	173 octave_idx_type idummy = 1;
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	174
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	175 F77_XFCN (dgeev, DGEEV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	176 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	177 n, tmp_data, n, pwr, pwi, dummy,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	178 idummy, pvr, n, &dummy_work, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	179 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	180 F77_CHAR_ARG_LEN (1)));
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	181
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	182 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	183 (*current_liboctave_error_handler) ("dgeev workspace query failed");
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	184
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	185 lwork = static_cast<octave_idx_type> (dummy_work);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	186 Array<double> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	187 double *pwork = work.fortran_vec ();
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	188
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	189 F77_XFCN (dgeev, DGEEV, (F77_CONST_CHAR_ARG2 ("N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	190 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	191 n, tmp_data, n, pwr, pwi, dummy,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	192 idummy, pvr, n, pwork, lwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	193 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	194 F77_CHAR_ARG_LEN (1)));
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	195
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	196 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	197 (*current_liboctave_error_handler) ("unrecoverable error in dgeev");
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	198
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	199 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	200 (*current_liboctave_error_handler) ("dgeev failed to converge");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	201
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	202 lambda.resize (n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	203 octave_idx_type nvr = calc_ev ? n : 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	204 v.resize (nvr, nvr);
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	205
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	206 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	207 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	208 if (wi.elem (j) == 0.0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	209 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	210 lambda.elem (j) = Complex (wr.elem (j));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	211 for (octave_idx_type i = 0; i < nvr; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	212 v.elem (i, j) = vr.elem (i, j);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	213 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	214 else
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	215 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	216 if (j+1 >= n)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	217 (*current_liboctave_error_handler) ("EIG: internal error");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	218
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	219 lambda.elem (j) = Complex (wr.elem (j), wi.elem (j));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	220 lambda.elem (j+1) = Complex (wr.elem (j+1), wi.elem (j+1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	221
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	222 for (octave_idx_type i = 0; i < nvr; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	223 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	224 double real_part = vr.elem (i, j);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	225 double imag_part = vr.elem (i, j+1);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	226 v.elem (i, j) = Complex (real_part, imag_part);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	227 v.elem (i, j+1) = Complex (real_part, -imag_part);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	228 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	229 j++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	230 }
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	231 }
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	232
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	233 return info;
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	234 }
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	235
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	236 octave_idx_type
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	237 EIG::symmetric_init (const Matrix& a, bool calc_ev)
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	238 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	239 octave_idx_type n = a.rows ();
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	240
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	241 if (n != a.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	242 (*current_liboctave_error_handler) ("EIG requires square matrix");
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	243
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	244 octave_idx_type info = 0;
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	245
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	246 Matrix atmp = a;
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	247 double *tmp_data = atmp.fortran_vec ();
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	248
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3178 diff changeset	249 ColumnVector wr (n);
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	250 double *pwr = wr.fortran_vec ();
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	251
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	252 octave_idx_type lwork = -1;
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	253 double dummy_work;
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	254
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	255 F77_XFCN (dsyev, DSYEV, (F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	256 F77_CONST_CHAR_ARG2 ("U", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	257 n, tmp_data, n, pwr, &dummy_work, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	258 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	259 F77_CHAR_ARG_LEN (1)));
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	260
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	261 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	262 (*current_liboctave_error_handler) ("dsyev workspace query failed");
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	263
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	264 lwork = static_cast<octave_idx_type> (dummy_work);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	265 Array<double> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	266 double *pwork = work.fortran_vec ();
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	267
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	268 F77_XFCN (dsyev, DSYEV, (F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	269 F77_CONST_CHAR_ARG2 ("U", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	270 n, tmp_data, n, pwr, pwork, lwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	271 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	272 F77_CHAR_ARG_LEN (1)));
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	273
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	274 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	275 (*current_liboctave_error_handler) ("unrecoverable error in dsyev");
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	276
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	277 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	278 (*current_liboctave_error_handler) ("dsyev failed to converge");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	279
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	280 lambda = ComplexColumnVector (wr);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	281 v = calc_ev ? ComplexMatrix (atmp) : ComplexMatrix ();
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	282
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	283 return info;
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	284 }
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	285
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	286 octave_idx_type
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	287 EIG::init (const ComplexMatrix& a, bool calc_ev)
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	288 {
5822 4fdc2515ebad [project @ 2006-05-18 19:31:36 by jwe] jwe parents: 5307 diff changeset	289 if (a.any_element_is_inf_or_nan ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	290 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	291 ("EIG: matrix contains Inf or NaN values");
5822 4fdc2515ebad [project @ 2006-05-18 19:31:36 by jwe] jwe parents: 5307 diff changeset	292
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	293 if (a.is_hermitian ())
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	294 return hermitian_init (a, calc_ev);
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	295
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	296 octave_idx_type n = a.rows ();
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	297
0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	298 if (n != a.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	299 (*current_liboctave_error_handler) ("EIG requires square matrix");
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	300
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	301 octave_idx_type info = 0;
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	302
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	303 ComplexMatrix atmp = a;
0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	304 Complex *tmp_data = atmp.fortran_vec ();
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	305
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	306 ComplexColumnVector w (n);
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	307 Complex *pw = w.fortran_vec ();
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	308
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	309 octave_idx_type nvr = calc_ev ? n : 0;
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	310 ComplexMatrix vtmp (nvr, nvr);
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	311 Complex *pv = vtmp.fortran_vec ();
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	312
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	313 octave_idx_type lwork = -1;
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	314 Complex dummy_work;
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	315
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	316 octave_idx_type lrwork = 2*n;
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	317 Array<double> rwork (dim_vector (lrwork, 1));
1934 0e591d443ff0 [project @ 1996-02-12 03:25:10 by jwe] jwe parents: 1882 diff changeset	318 double *prwork = rwork.fortran_vec ();
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	319
1365 9b2654476502 [project @ 1995-09-05 23:44:41 by jwe] jwe parents: 1315 diff changeset	320 Complex *dummy = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	321 octave_idx_type idummy = 1;
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	322
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4192 diff changeset	323 F77_XFCN (zgeev, ZGEEV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	324 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	325 n, tmp_data, n, pw, dummy, idummy,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	326 pv, n, &dummy_work, lwork, prwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	327 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	328 F77_CHAR_ARG_LEN (1)));
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	329
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	330 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	331 (*current_liboctave_error_handler) ("zgeev workspace query failed");
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	332
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	333 lwork = static_cast<octave_idx_type> (dummy_work.real ());
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	334 Array<Complex> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	335 Complex *pwork = work.fortran_vec ();
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	336
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	337 F77_XFCN (zgeev, ZGEEV, (F77_CONST_CHAR_ARG2 ("N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	338 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	339 n, tmp_data, n, pw, dummy, idummy,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	340 pv, n, pwork, lwork, prwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	341 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	342 F77_CHAR_ARG_LEN (1)));
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	343
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	344 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	345 (*current_liboctave_error_handler) ("unrecoverable error in zgeev");
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	346
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	347 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	348 (*current_liboctave_error_handler) ("zgeev failed to converge");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	349
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	350 lambda = w;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	351 v = vtmp;
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	352
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	353 return info;
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	354 }
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	355
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	356 octave_idx_type
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	357 EIG::hermitian_init (const ComplexMatrix& a, bool calc_ev)
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	358 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	359 octave_idx_type n = a.rows ();
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	360
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	361 if (n != a.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	362 (*current_liboctave_error_handler) ("EIG requires square matrix");
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	363
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	364 octave_idx_type info = 0;
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	365
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	366 ComplexMatrix atmp = a;
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	367 Complex *tmp_data = atmp.fortran_vec ();
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	368
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3178 diff changeset	369 ColumnVector wr (n);
d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3178 diff changeset	370 double *pwr = wr.fortran_vec ();
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	371
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	372 octave_idx_type lwork = -1;
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	373 Complex dummy_work;
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	374
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	375 octave_idx_type lrwork = 3*n;
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	376 Array<double> rwork (dim_vector (lrwork, 1));
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	377 double *prwork = rwork.fortran_vec ();
33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	378
4725 fa612b2cbfe9 [project @ 2004-01-23 16:42:51 by jwe] jwe parents: 4552 diff changeset	379 F77_XFCN (zheev, ZHEEV, (F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	380 F77_CONST_CHAR_ARG2 ("U", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	381 n, tmp_data, n, pwr, &dummy_work, lwork,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	382 prwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	383 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	384 F77_CHAR_ARG_LEN (1)));
2815 33486d9e2d00 [project @ 1997-03-14 08:24:46 by jwe] jwe parents: 2804 diff changeset	385
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	386 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	387 (*current_liboctave_error_handler) ("zheev workspace query failed");
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	388
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	389 lwork = static_cast<octave_idx_type> (dummy_work.real ());
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	390 Array<Complex> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	391 Complex *pwork = work.fortran_vec ();
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	392
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	393 F77_XFCN (zheev, ZHEEV, (F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	394 F77_CONST_CHAR_ARG2 ("U", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	395 n, tmp_data, n, pwr, pwork, lwork, prwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	396 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	397 F77_CHAR_ARG_LEN (1)));
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	398
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	399 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	400 (*current_liboctave_error_handler) ("unrecoverable error in zheev");
4800 c322edde72ac [project @ 2004-02-25 03:54:33 by jwe] jwe parents: 4725 diff changeset	401
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	402 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	403 (*current_liboctave_error_handler) ("zheev failed to converge");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	404
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	405 lambda = ComplexColumnVector (wr);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	406 v = calc_ev ? ComplexMatrix (atmp) : ComplexMatrix ();
462 07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	407
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	408 return info;
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	409 }
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe] jwe parents: diff changeset	410
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	411 octave_idx_type
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	412 EIG::init (const Matrix& a, const Matrix& b, bool calc_ev)
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	413 {
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	414 if (a.any_element_is_inf_or_nan () \|\| b.any_element_is_inf_or_nan ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	415 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	416 ("EIG: matrix contains Inf or NaN values");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	417
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	418 octave_idx_type n = a.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	419 octave_idx_type nb = b.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	420
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	421 if (n != a.cols () \|\| nb != b.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	422 (*current_liboctave_error_handler) ("EIG requires square matrix");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	423
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	424 if (n != nb)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	425 (*current_liboctave_error_handler) ("EIG requires same size matrices");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	426
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	427 octave_idx_type info = 0;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	428
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	429 Matrix tmp = b;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	430 double *tmp_data = tmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	431
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	432 F77_XFCN (dpotrf, DPOTRF, (F77_CONST_CHAR_ARG2 ("L", 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	433 n, tmp_data, n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	434 info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	435 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	436 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	437
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	438 if (a.is_symmetric () && b.is_symmetric () && info == 0)
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	439 return symmetric_init (a, b, calc_ev);
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	440
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	441 Matrix atmp = a;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	442 double *atmp_data = atmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	443
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	444 Matrix btmp = b;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	445 double *btmp_data = btmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	446
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	447 Array<double> ar (dim_vector (n, 1));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	448 double *par = ar.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	449
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	450 Array<double> ai (dim_vector (n, 1));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	451 double *pai = ai.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	452
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	453 Array<double> beta (dim_vector (n, 1));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	454 double *pbeta = beta.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	455
9020 728e7943752d EIG.cc: avoid volatile decl for tmp variable John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	456 octave_idx_type tnvr = calc_ev ? n : 0;
728e7943752d EIG.cc: avoid volatile decl for tmp variable John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	457 Matrix vr (tnvr, tnvr);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	458 double *pvr = vr.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	459
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	460 octave_idx_type lwork = -1;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	461 double dummy_work;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	462
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	463 double *dummy = 0;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	464 octave_idx_type idummy = 1;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	465
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	466 F77_XFCN (dggev, DGGEV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	467 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	468 n, atmp_data, n, btmp_data, n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	469 par, pai, pbeta,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	470 dummy, idummy, pvr, n,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	471 &dummy_work, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	472 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	473 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	474
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	475 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	476 (*current_liboctave_error_handler) ("dggev workspace query failed");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	477
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	478 lwork = static_cast<octave_idx_type> (dummy_work);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	479 Array<double> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	480 double *pwork = work.fortran_vec ();
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	481
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	482 F77_XFCN (dggev, DGGEV, (F77_CONST_CHAR_ARG2 ("N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	483 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	484 n, atmp_data, n, btmp_data, n,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	485 par, pai, pbeta,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	486 dummy, idummy, pvr, n,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	487 pwork, lwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	488 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	489 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	490
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	491 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	492 (*current_liboctave_error_handler) ("unrecoverable error in dggev");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	493
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	494 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	495 (*current_liboctave_error_handler) ("dggev failed to converge");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	496
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	497 lambda.resize (n);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	498 octave_idx_type nvr = calc_ev ? n : 0;
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	499 v.resize (nvr, nvr);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	500
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	501 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	502 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	503 if (ai.elem (j) == 0.0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	504 {
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	505 lambda.elem (j) = Complex (ar.elem (j) / beta.elem (j));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	506 for (octave_idx_type i = 0; i < nvr; i++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	507 v.elem (i, j) = vr.elem (i, j);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	508 }
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	509 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	510 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	511 if (j+1 >= n)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	512 (*current_liboctave_error_handler) ("EIG: internal error");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	513
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	514 lambda.elem (j) = Complex (ar.elem (j) / beta.elem (j),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	515 ai.elem (j) / beta.elem (j));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	516 lambda.elem (j+1) = Complex (ar.elem (j+1) / beta.elem (j+1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	517 ai.elem (j+1) / beta.elem (j+1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	518
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	519 for (octave_idx_type i = 0; i < nvr; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	520 {
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	521 double real_part = vr.elem (i, j);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	522 double imag_part = vr.elem (i, j+1);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	523 v.elem (i, j) = Complex (real_part, imag_part);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	524 v.elem (i, j+1) = Complex (real_part, -imag_part);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	525 }
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	526 j++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	527 }
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	528 }
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	529
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	530 return info;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	531 }
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	532
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	533 octave_idx_type
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	534 EIG::symmetric_init (const Matrix& a, const Matrix& b, bool calc_ev)
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	535 {
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	536 octave_idx_type n = a.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	537 octave_idx_type nb = b.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	538
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	539 if (n != a.cols () \|\| nb != b.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	540 (*current_liboctave_error_handler) ("EIG requires square matrix");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	541
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	542 if (n != nb)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	543 (*current_liboctave_error_handler) ("EIG requires same size matrices");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	544
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	545 octave_idx_type info = 0;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	546
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	547 Matrix atmp = a;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	548 double *atmp_data = atmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	549
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	550 Matrix btmp = b;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	551 double *btmp_data = btmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	552
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	553 ColumnVector wr (n);
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	554 double *pwr = wr.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	555
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	556 octave_idx_type lwork = -1;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	557 double dummy_work;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	558
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	559 F77_XFCN (dsygv, DSYGV, (1, F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	560 F77_CONST_CHAR_ARG2 ("U", 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	561 n, atmp_data, n,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	562 btmp_data, n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	563 pwr, &dummy_work, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	564 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	565 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	566
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	567 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	568 (*current_liboctave_error_handler) ("dsygv workspace query failed");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	569
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	570 lwork = static_cast<octave_idx_type> (dummy_work);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	571 Array<double> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	572 double *pwork = work.fortran_vec ();
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	573
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	574 F77_XFCN (dsygv, DSYGV, (1, F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	575 F77_CONST_CHAR_ARG2 ("U", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	576 n, atmp_data, n,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	577 btmp_data, n,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	578 pwr, pwork, lwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	579 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	580 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	581
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	582 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	583 (*current_liboctave_error_handler) ("unrecoverable error in dsygv");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	584
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	585 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	586 (*current_liboctave_error_handler) ("dsygv failed to converge");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	587
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	588 lambda = ComplexColumnVector (wr);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	589 v = calc_ev ? ComplexMatrix (atmp) : ComplexMatrix ();
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	590
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	591 return info;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	592 }
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	593
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	594 octave_idx_type
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	595 EIG::init (const ComplexMatrix& a, const ComplexMatrix& b, bool calc_ev)
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	596 {
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	597 if (a.any_element_is_inf_or_nan () \|\| b.any_element_is_inf_or_nan ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	598 (*current_liboctave_error_handler)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	599 ("EIG: matrix contains Inf or NaN values");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	600
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	601 octave_idx_type n = a.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	602 octave_idx_type nb = b.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	603
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	604 if (n != a.cols () \|\| nb != b.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	605 (*current_liboctave_error_handler) ("EIG requires square matrix");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	606
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	607 if (n != nb)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	608 (*current_liboctave_error_handler) ("EIG requires same size matrices");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	609
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	610 octave_idx_type info = 0;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	611
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	612 ComplexMatrix tmp = b;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	613 Complex*tmp_data = tmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	614
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	615 F77_XFCN (zpotrf, ZPOTRF, (F77_CONST_CHAR_ARG2 ("L", 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	616 n, tmp_data, n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	617 info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	618 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	619 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	620
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	621 if (a.is_hermitian () && b.is_hermitian () && info == 0)
20490 ff904ae0285b eig: Return correct solution for a pair of hermitian matrices (bug #45511) Mike Miller <mtmiller@octave.org> parents: 19697 diff changeset	622 return hermitian_init (a, b, calc_ev);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	623
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	624 ComplexMatrix atmp = a;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	625 Complex *atmp_data = atmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	626
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	627 ComplexMatrix btmp = b;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	628 Complex *btmp_data = btmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	629
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	630 ComplexColumnVector alpha (n);
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	631 Complex *palpha = alpha.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	632
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	633 ComplexColumnVector beta (n);
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	634 Complex *pbeta = beta.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	635
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	636 octave_idx_type nvr = calc_ev ? n : 0;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	637 ComplexMatrix vtmp (nvr, nvr);
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	638 Complex *pv = vtmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	639
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	640 octave_idx_type lwork = -1;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	641 Complex dummy_work;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	642
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	643 octave_idx_type lrwork = 8*n;
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	644 Array<double> rwork (dim_vector (lrwork, 1));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	645 double *prwork = rwork.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	646
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	647 Complex *dummy = 0;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	648 octave_idx_type idummy = 1;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	649
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	650 F77_XFCN (zggev, ZGGEV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	651 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	652 n, atmp_data, n, btmp_data, n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	653 palpha, pbeta, dummy, idummy,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	654 pv, n, &dummy_work, lwork, prwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	655 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	656 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	657
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	658 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	659 (*current_liboctave_error_handler) ("zggev workspace query failed");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	660
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	661 lwork = static_cast<octave_idx_type> (dummy_work.real ());
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	662 Array<Complex> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	663 Complex *pwork = work.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	664
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	665 F77_XFCN (zggev, ZGGEV, (F77_CONST_CHAR_ARG2 ("N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	666 F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	667 n, atmp_data, n, btmp_data, n,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	668 palpha, pbeta, dummy, idummy,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	669 pv, n, pwork, lwork, prwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	670 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	671 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	672
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	673 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	674 (*current_liboctave_error_handler) ("unrecoverable error in zggev");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	675
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	676 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	677 (*current_liboctave_error_handler) ("zggev failed to converge");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	678
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	679 lambda.resize (n);
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	680
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	681 for (octave_idx_type j = 0; j < n; j++)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	682 lambda.elem (j) = alpha.elem (j) / beta.elem (j);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	683
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	684 v = vtmp;
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	685
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	686 return info;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	687 }
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	688
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	689 octave_idx_type
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	690 EIG::hermitian_init (const ComplexMatrix& a, const ComplexMatrix& b,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	691 bool calc_ev)
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	692 {
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	693 octave_idx_type n = a.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	694 octave_idx_type nb = b.rows ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	695
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	696 if (n != a.cols () \|\| nb != b.cols ())
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	697 (*current_liboctave_error_handler) ("EIG requires square matrix");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	698
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	699 if (n != nb)
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	700 (*current_liboctave_error_handler) ("EIG requires same size matrices");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	701
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	702 octave_idx_type info = 0;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	703
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	704 ComplexMatrix atmp = a;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	705 Complex *atmp_data = atmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	706
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	707 ComplexMatrix btmp = b;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	708 Complex *btmp_data = btmp.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	709
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	710 ColumnVector wr (n);
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	711 double *pwr = wr.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	712
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	713 octave_idx_type lwork = -1;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	714 Complex dummy_work;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	715
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	716 octave_idx_type lrwork = 3*n;
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	717 Array<double> rwork (dim_vector (lrwork, 1));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	718 double *prwork = rwork.fortran_vec ();
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	719
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	720 F77_XFCN (zhegv, ZHEGV, (1, F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	721 F77_CONST_CHAR_ARG2 ("U", 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	722 n, atmp_data, n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	723 btmp_data, n,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	724 pwr, &dummy_work, lwork,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	725 prwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	726 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	727 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	728
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	729 if (info != 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	730 (*current_liboctave_error_handler) ("zhegv workspace query failed");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	731
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	732 lwork = static_cast<octave_idx_type> (dummy_work.real ());
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	733 Array<Complex> work (dim_vector (lwork, 1));
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	734 Complex *pwork = work.fortran_vec ();
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	735
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	736 F77_XFCN (zhegv, ZHEGV, (1, F77_CONST_CHAR_ARG2 (calc_ev ? "V" : "N", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	737 F77_CONST_CHAR_ARG2 ("U", 1),
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	738 n, atmp_data, n,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	739 btmp_data, n,
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	740 pwr, pwork, lwork, prwork, info
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	741 F77_CHAR_ARG_LEN (1)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	742 F77_CHAR_ARG_LEN (1)));
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	743
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	744 if (info < 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	745 (*current_liboctave_error_handler) ("unrecoverable error in zhegv");
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	746
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	747 if (info > 0)
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	748 (*current_liboctave_error_handler) ("zhegv failed to converge");
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	749
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	750 lambda = ComplexColumnVector (wr);
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20490 diff changeset	751 v = calc_ev ? ComplexMatrix (atmp) : ComplexMatrix ();
8339 18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	752
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	753 return info;
18c4ded8612a Add generalized eigenvalue functions Jarkko Kaleva <d3roga@gmail.com> parents: 7482 diff changeset	754 }

Mercurial > octave

annotate liboctave/numeric/EIG.cc @ 21136:7cac4e7458f2