octave: liboctave/numeric/eigs-base.cc annotate

annotate liboctave/numeric/eigs-base.cc @ 20955:77f5591878bf

maint: Use '! expr' rather than '!expr' to conform to coding guidelines. * dialog.h, documentation-dock-widget.cc, files-dock-widget.cc, find-files-dialog.cc, file-editor-tab.cc, file-editor.cc, find-dialog.cc, octave-qscintilla.cc, main-window.cc, parser.cc, resource-manager.cc, workspace-view.cc, data.cc, dlmread.cc, gl-render.cc, gl2ps-renderer.cc, graphics.cc, graphics.in.h, ls-hdf5.cc, ls-mat5.cc, ls-oct-binary.cc, lsode.cc, mappers.cc, pt-jit.cc, regexp.cc, spparms.cc, symtab.h, utils.cc, zfstream.cc, __eigs__.cc, __glpk__.cc, __init_fltk__.cc, ccolamd.cc, colamd.cc, ov-base-diag.cc, ov-base-int.cc, ov-base-sparse.cc, ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-class.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-java.cc, ov-perm.cc, ov-re-sparse.cc, ov-str-mat.cc, ov-struct.cc, ov.cc, pt-mat.cc, Array.cc, Array.h, CMatrix.cc, CSparse.cc, MatrixType.cc, PermMatrix.cc, Sparse.h, dMatrix.cc, dSparse.cc, fCMatrix.cc, fMatrix.cc, idx-vector.cc, CollocWt.h, SparseCmplxLU.cc, SparseCmplxQR.cc, SparseQR.cc, SparsedbleLU.cc, base-qr.cc, eigs-base.cc, oct-fftw.cc, randmtzig.c, sparse-dmsolve.cc, kpse.cc, lo-regexp.cc, oct-locbuf.h, url-transfer.cc, url-transfer.h, bitset.m, interp2.m, __isequal__.m, inpolygon.m, questdlg.m, help.m, compare_versions.m, substruct.m, configure_make.m, whitebg.m, __marching_cube__.m, struct2hdl.m, polyfit.m, spline.m, unique.m, svds.m, ellipke.m, binoinv.m, hygepdf.m, nbininv.m, poissinv.m, tcdf.m, unidcdf.m, unidpdf.m, dec2base.m, assert.m, weekday.m, mkoctfile.in.cc: maint: Use '! expr' rather than '!expr' to conform to coding guidelines.

author	Rik <rik@octave.org>
date	Sun, 20 Dec 2015 10:15:02 -0800
parents	f7084eae3318
children	1edf15793cac

rev	line source
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1 /*
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 19410 diff changeset	3 Copyright (C) 2005-2015 David Bateman
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	4
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	5 This file is part of Octave.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	6
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	8 under the terms of the GNU General Public License as published by the
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	10 option) any later version.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	11
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	15 for more details.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	16
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	17 You should have received a copy of the GNU General Public License
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	18 along with Octave; see the file COPYING. If not, see
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	19 <http://www.gnu.org/licenses/>.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	20
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	21 */
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	22
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	23 #ifdef HAVE_CONFIG_H
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	24 #include <config.h>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	25 #endif
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	26
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	27 #include <cfloat>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	28 #include <cmath>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	29 #include <vector>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	30 #include <iostream>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	31
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	32 #include "f77-fcn.h"
19269 65554f5847ac don't include oct-locbuf.h in header files unnecessarily John W. Eaton <jwe@octave.org> parents: 17769 diff changeset	33 #include "oct-locbuf.h"
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	34 #include "quit.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	35 #include "SparsedbleLU.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	36 #include "SparseCmplxLU.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	37 #include "dSparse.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	38 #include "CSparse.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	39 #include "MatrixType.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	40 #include "SparsedbleCHOL.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	41 #include "SparseCmplxCHOL.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	42 #include "oct-rand.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	43 #include "dbleCHOL.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	44 #include "CmplxCHOL.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	45 #include "dbleLU.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	46 #include "CmplxLU.h"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	47
14144 834df9f10963 remove ARPACK files from sources and restore configure checks for external ARPACK library John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	48 #ifdef HAVE_ARPACK
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	49 typedef ColumnVector (*EigsFunc) (const ColumnVector &x, int &eigs_error);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	50 typedef ComplexColumnVector (*EigsComplexFunc)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	51 (const ComplexColumnVector &x, int &eigs_error);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	52
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	53 // Arpack and blas fortran functions we call.
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	54 extern "C"
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	55 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	56 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	57 F77_FUNC (dsaupd, DSAUPD) (octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	58 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	59 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	60 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	61 const octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	62 double, const octave_idx_type&, double,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	63 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	64 octave_idx_type, double, double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	65 const octave_idx_type&, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	66 F77_CHAR_ARG_LEN_DECL
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	67 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	68
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	69 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	70 F77_FUNC (dseupd, DSEUPD) (const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	71 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	72 octave_idx_type, double, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	73 const octave_idx_type&, const double&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	74 F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	75 const octave_idx_type&,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	76 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	77 const octave_idx_type&, const double&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	78 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	79 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	80 octave_idx_type, double, double*,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	81 const octave_idx_type&, octave_idx_type&
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	82 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	83 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	84 F77_CHAR_ARG_LEN_DECL);
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	85
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	86 F77_RET_T
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	87 F77_FUNC (dnaupd, DNAUPD) (octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	88 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	89 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	90 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	91 octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	92 double, const octave_idx_type&, double,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	93 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	94 octave_idx_type, double, double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	95 const octave_idx_type&, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	96 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	97 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	98
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	99 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	100 F77_FUNC (dneupd, DNEUPD) (const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	101 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	102 octave_idx_type, double, double*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	103 double*, const octave_idx_type&, const double&,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	104 const double&, double*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	105 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	106 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	107 F77_CONST_CHAR_ARG_DECL,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	108 octave_idx_type&, const double&, double*,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	109 const octave_idx_type&, double*,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	110 const octave_idx_type&, octave_idx_type*,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	111 octave_idx_type, double, double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	112 const octave_idx_type&, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	113 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	114 F77_CHAR_ARG_LEN_DECL
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	115 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	116
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	117 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	118 F77_FUNC (znaupd, ZNAUPD) (octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	119 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	120 const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	121 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	122 const octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	123 Complex, const octave_idx_type&, Complex,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	124 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	125 octave_idx_type, Complex, Complex*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	126 const octave_idx_type&, double *, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	127 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	128 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	129
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	130 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	131 F77_FUNC (zneupd, ZNEUPD) (const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	132 F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	133 octave_idx_type, Complex, Complex*,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	134 const octave_idx_type&, const Complex&, Complex*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	135 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	136 const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	137 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	138 const octave_idx_type&, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	139 Complex, const octave_idx_type&, Complex,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	140 const octave_idx_type&, octave_idx_type*,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	141 octave_idx_type, Complex, Complex*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	142 const octave_idx_type&, double *, octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	143 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	144 F77_CHAR_ARG_LEN_DECL
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	145 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	146
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	147 F77_RET_T
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	148 F77_FUNC (dgemv, DGEMV) (F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	149 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	150 const double&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 10466 diff changeset	151 const octave_idx_type&, const double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	152 const octave_idx_type&, const double&, double*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	153 const octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	154 F77_CHAR_ARG_LEN_DECL);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	155
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	156
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	157 F77_RET_T
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	158 F77_FUNC (zgemv, ZGEMV) (F77_CONST_CHAR_ARG_DECL,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	159 const octave_idx_type&, const octave_idx_type&,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	160 const Complex&, const Complex*,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	161 const octave_idx_type&, const Complex*,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	162 const octave_idx_type&, const Complex&, Complex*,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	163 const octave_idx_type&
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	164 F77_CHAR_ARG_LEN_DECL);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	165
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	166 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	167
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	168
20791 f7084eae3318 maint: Use Octave coding conventions for #if statements. Rik <rik@octave.org> parents: 20232 diff changeset	169 #if ! defined (CXX_NEW_FRIEND_TEMPLATE_DECL)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	170 static octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	171 lusolve (const SparseMatrix&, const SparseMatrix&, Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	172
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	173 static octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	174 lusolve (const SparseComplexMatrix&, const SparseComplexMatrix&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	175 ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	176
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	177 static octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	178 lusolve (const Matrix&, const Matrix&, Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	179
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	180 static octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	181 lusolve (const ComplexMatrix&, const ComplexMatrix&, ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	182
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	183 static ComplexMatrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	184 ltsolve (const SparseComplexMatrix&, const ColumnVector&,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	185 const ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	186
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	187 static Matrix
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	188 ltsolve (const SparseMatrix&, const ColumnVector&, const Matrix&,);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	189
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	190 static ComplexMatrix
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	191 ltsolve (const ComplexMatrix&, const ColumnVector&, const ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	192
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	193 static Matrix
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	194 ltsolve (const Matrix&, const ColumnVector&, const Matrix&,);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	195
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	196 static ComplexMatrix
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	197 utsolve (const SparseComplexMatrix&, const ColumnVector&, const ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	198
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	199 static Matrix
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	200 utsolve (const SparseMatrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	201
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	202 static ComplexMatrix
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	203 utsolve (const ComplexMatrix&, const ColumnVector&, const ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	204
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	205 static Matrix
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	206 utsolve (const Matrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	207
12202 dc72a664ac7a eigs-base.cc: fix error in change removing HAVE_ARPACK John W. Eaton <jwe@octave.org> parents: 12198 diff changeset	208 #endif
dc72a664ac7a eigs-base.cc: fix error in change removing HAVE_ARPACK John W. Eaton <jwe@octave.org> parents: 12198 diff changeset	209
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	210 static void
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	211 warn_convergence (void)
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	212 {
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	213 (*current_liboctave_warning_with_id_handler)
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	214 ("Octave:convergence",
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	215 "eigs: 'A - sigma*B' is singular, indicating sigma is exactly "
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	216 "an eigenvalue so convergence is not guaranteed");
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	217 }
95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	218
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	219 template <class M, class SM>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	220 static octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	221 lusolve (const SM& L, const SM& U, M& m)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	222 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	223 octave_idx_type err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	224 double rcond;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	225 MatrixType utyp (MatrixType::Upper);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	226
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	227 // Sparse L is lower triangular, Dense L is permuted lower triangular!!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	228 m = L.solve (m, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	229 if (err)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	230 return err;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	231
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	232 m = U.solve (utyp, m, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	233
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	234 return err;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	235 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	236
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	237 template <class SM, class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	238 static M
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	239 ltsolve (const SM& L, const ColumnVector& Q, const M& m)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	240 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	241 octave_idx_type n = L.cols ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	242 octave_idx_type b_nc = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	243 octave_idx_type err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	244 double rcond;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	245 MatrixType ltyp (MatrixType::Lower);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	246 M tmp = L.solve (ltyp, m, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	247 M retval;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	248 const double* qv = Q.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	249
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	250 if (! err)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	251 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	252 retval.resize (n, b_nc);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	253 for (octave_idx_type j = 0; j < b_nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	254 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	255 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	256 retval.elem (static_cast<octave_idx_type>(qv[i]), j) =
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	257 tmp.elem (i,j);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	258 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	259 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	260
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	261 return retval;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	262 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	263
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	264 template <class SM, class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	265 static M
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	266 utsolve (const SM& U, const ColumnVector& Q, const M& m)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	267 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	268 octave_idx_type n = U.cols ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	269 octave_idx_type b_nc = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	270 octave_idx_type err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	271 double rcond;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	272 MatrixType utyp (MatrixType::Upper);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	273
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	274 M retval (n, b_nc);
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	275 const double* qv = Q.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	276 for (octave_idx_type j = 0; j < b_nc; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	277 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	278 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	279 retval.elem (i,j) = m.elem (static_cast<octave_idx_type>(qv[i]), j);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	280 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	281 return U.solve (utyp, retval, err, rcond, 0);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	282 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	283
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	284 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	285 vector_product (const SparseMatrix& m, const double* x, double* y)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	286 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	287 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	288
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	289 for (octave_idx_type j = 0; j < nc; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	290 y[j] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	291
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	292 for (octave_idx_type j = 0; j < nc; j++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	293 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	294 y[m.ridx (i)] += m.data (i) * x[j];
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	295
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	296 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	297 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	298
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	299 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	300 vector_product (const Matrix& m, const double x, double y)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	301 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	302 octave_idx_type nr = m.rows ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	303 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	304
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	305 F77_XFCN (dgemv, DGEMV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	306 nr, nc, 1.0, m.data (), nr,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	307 x, 1, 0.0, y, 1
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	308 F77_CHAR_ARG_LEN (1)));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	309
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	310 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	311 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	312 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	313 ("eigs: unrecoverable error in dgemv");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	314 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	315 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	316 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	317 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	318 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	319
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	320 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	321 vector_product (const SparseComplexMatrix& m, const Complex* x,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	322 Complex* y)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	323 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	324 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	325
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	326 for (octave_idx_type j = 0; j < nc; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	327 y[j] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	328
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	329 for (octave_idx_type j = 0; j < nc; j++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	330 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	331 y[m.ridx (i)] += m.data (i) * x[j];
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	332
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	333 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	334 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	335
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	336 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	337 vector_product (const ComplexMatrix& m, const Complex x, Complex y)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	338 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	339 octave_idx_type nr = m.rows ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	340 octave_idx_type nc = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	341
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	342 F77_XFCN (zgemv, ZGEMV, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	343 nr, nc, 1.0, m.data (), nr,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	344 x, 1, 0.0, y, 1
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	345 F77_CHAR_ARG_LEN (1)));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	346
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	347 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	348 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	349 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	350 ("eigs: unrecoverable error in zgemv");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	351 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	352 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	353 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	354 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	355 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	356
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	357 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	358 make_cholb (Matrix& b, Matrix& bt, ColumnVector& permB)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	359 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	360 octave_idx_type info;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	361 CHOL fact (b, info);
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	362 octave_idx_type n = b.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	363
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	364 if (info != 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	365 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	366 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	367 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	368 bt = fact.chol_matrix ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	369 b = bt.transpose ();
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	370 permB = ColumnVector (n);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	371 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	372 permB(i) = i;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	373 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	374 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	375 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	376
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	377 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	378 make_cholb (SparseMatrix& b, SparseMatrix& bt, ColumnVector& permB)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	379 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	380 octave_idx_type info;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	381 SparseCHOL fact (b, info, false);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	382
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	383 if (fact.P () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	384 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	385 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	386 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	387 b = fact.L ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	388 bt = b.transpose ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	389 permB = fact.perm () - 1.0;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	390 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	391 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	392 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	393
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	394 static bool
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	395 make_cholb (ComplexMatrix& b, ComplexMatrix& bt, ColumnVector& permB)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	396 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	397 octave_idx_type info;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	398 ComplexCHOL fact (b, info);
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	399 octave_idx_type n = b.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	400
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	401 if (info != 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	402 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	403 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	404 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	405 bt = fact.chol_matrix ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	406 b = bt.hermitian ();
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	407 permB = ColumnVector (n);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	408 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	409 permB(i) = i;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	410 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	411 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	412 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	413
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	414 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	415 make_cholb (SparseComplexMatrix& b, SparseComplexMatrix& bt,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	416 ColumnVector& permB)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	417 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	418 octave_idx_type info;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	419 SparseComplexCHOL fact (b, info, false);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	420
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	421 if (fact.P () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	422 return false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	423 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	424 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	425 b = fact.L ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	426 bt = b.hermitian ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	427 permB = fact.perm () - 1.0;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	428 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	429 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	430 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	431
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	432 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	433 LuAminusSigmaB (const SparseMatrix &m, const SparseMatrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	434 bool cholB, const ColumnVector& permB, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	435 SparseMatrix &L, SparseMatrix &U, octave_idx_type *P,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	436 octave_idx_type *Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	437 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	438 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	439 octave_idx_type n = m.rows ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	440
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	441 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	442 SparseMatrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	443
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	444 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	445 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	446 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	447 {
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	448 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	449 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	450 SparseMatrix tmp(n,n,n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	451 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	452 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	453 tmp.xcidx (i) = i;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	454 tmp.xridx (i) =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	455 static_cast<octave_idx_type>(permB(i));
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	456 tmp.xdata (i) = 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	457 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	458 tmp.xcidx (n) = n;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	459
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	460 AminusSigmaB -= sigma * tmp *
e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	461 b.transpose () * b * tmp.transpose ();
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	462 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	463 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	464 AminusSigmaB -= sigma * b.transpose () * b;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	465 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	466 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	467 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	468 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	469 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	470 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	471 SparseMatrix sigmat (n, n, n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	472
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	473 // Create sigma * speye (n,n)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	474 sigmat.xcidx (0) = 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	475 for (octave_idx_type i = 0; i < n; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	476 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	477 sigmat.xdata (i) = sigma;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	478 sigmat.xridx (i) = i;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	479 sigmat.xcidx (i+1) = i + 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	480 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	481
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	482 AminusSigmaB -= sigmat;
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	483 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	484
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	485 SparseLU fact (AminusSigmaB);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	486
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	487 L = fact.L ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	488 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	489 const octave_idx_type *P2 = fact.row_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	490 const octave_idx_type *Q2 = fact.col_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	491
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	492 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	493 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	494 P[j] = P2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	495 Q[j] = Q2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	496 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	497
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	498 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	499 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	500 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	501 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	502 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	503 double d = 0.;
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	504 if (U.xcidx (j+1) > U.xcidx (j)
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	505 && U.xridx (U.xcidx (j+1)-1) == j)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	506 d = std::abs (U.xdata (U.xcidx (j+1)-1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	507
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	508 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	509 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	510
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	511 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	512 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	513 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	514
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	515 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	516 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	517
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	518 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	519 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	520
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	521 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	522 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	523
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	524 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	525 LuAminusSigmaB (const Matrix &m, const Matrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	526 bool cholB, const ColumnVector& permB, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	527 Matrix &L, Matrix &U, octave_idx_type *P,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	528 octave_idx_type *Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	529 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	530 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	531 octave_idx_type n = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	532
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	533 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	534 Matrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	535
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	536 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	537 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	538 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	539 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	540 Matrix tmp = sigma * b.transpose () * b;
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	541 const double *pB = permB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	542 double *p = AminusSigmaB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	543
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	544 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	545 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	546 for (octave_idx_type j = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	547 j < b.cols (); j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	548 for (octave_idx_type i = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	549 i < b.rows (); i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	550 *p++ -= tmp.xelem (static_cast<octave_idx_type>(pB[i]),
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	551 static_cast<octave_idx_type>(pB[j]));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	552 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	553 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	554 AminusSigmaB -= tmp;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	555 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	556 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	557 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	558 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	559 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	560 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	561 double *p = AminusSigmaB.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	562
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	563 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	564 p[i*(n+1)] -= sigma;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	565 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	566
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	567 LU fact (AminusSigmaB);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	568
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	569 L = fact.P ().transpose () * fact.L ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	570 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	571 for (octave_idx_type j = 0; j < n; j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	572 P[j] = Q[j] = j;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	573
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	574 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	575 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	576 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	577 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	578 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	579 double d = std::abs (U.xelem (j,j));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	580 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	581 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	582
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	583 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	584 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	585 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	586
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	587 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	588 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	589
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	590 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	591 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	592
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	593 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	594 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	595
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	596 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	597 LuAminusSigmaB (const SparseComplexMatrix &m, const SparseComplexMatrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	598 bool cholB, const ColumnVector& permB, Complex sigma,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	599 SparseComplexMatrix &L, SparseComplexMatrix &U,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	600 octave_idx_type P, octave_idx_type Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	601 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	602 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	603 octave_idx_type n = m.rows ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	604
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	605 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	606 SparseComplexMatrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	607
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	608 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	609 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	610 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	611 {
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	612 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	613 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	614 SparseMatrix tmp(n,n,n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	615 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	616 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	617 tmp.xcidx (i) = i;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	618 tmp.xridx (i) =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	619 static_cast<octave_idx_type>(permB(i));
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	620 tmp.xdata (i) = 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	621 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	622 tmp.xcidx (n) = n;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	623
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	624 AminusSigmaB -= tmp * b.hermitian () * b *
e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	625 tmp.transpose () * sigma;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	626 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	627 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	628 AminusSigmaB -= sigma * b.hermitian () * b;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	629 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	630 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	631 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	632 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	633 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	634 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	635 SparseComplexMatrix sigmat (n, n, n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	636
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	637 // Create sigma * speye (n,n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	638 sigmat.xcidx (0) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	639 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	640 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	641 sigmat.xdata (i) = sigma;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	642 sigmat.xridx (i) = i;
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	643 sigmat.xcidx (i+1) = i + 1;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	644 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	645
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	646 AminusSigmaB -= sigmat;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	647 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	648
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	649 SparseComplexLU fact (AminusSigmaB);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	650
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	651 L = fact.L ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	652 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	653 const octave_idx_type *P2 = fact.row_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	654 const octave_idx_type *Q2 = fact.col_perm ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	655
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	656 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	657 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	658 P[j] = P2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	659 Q[j] = Q2[j];
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	660 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	661
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	662 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	663 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	664 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	665 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	666 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	667 double d = 0.;
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	668 if (U.xcidx (j+1) > U.xcidx (j)
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	669 && U.xridx (U.xcidx (j+1)-1) == j)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	670 d = std::abs (U.xdata (U.xcidx (j+1)-1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	671
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	672 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	673 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	674
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	675 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	676 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	677 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	678
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	679 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	680 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	681
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	682 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	683 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	684
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	685 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	686 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	687
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	688 static bool
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	689 LuAminusSigmaB (const ComplexMatrix &m, const ComplexMatrix &b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	690 bool cholB, const ColumnVector& permB, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	691 ComplexMatrix &L, ComplexMatrix &U, octave_idx_type *P,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	692 octave_idx_type *Q)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	693 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	694 bool have_b = ! b.is_empty ();
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	695 octave_idx_type n = m.cols ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	696
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	697 // Caclulate LU decomposition of 'A - sigma * B'
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	698 ComplexMatrix AminusSigmaB (m);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	699
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	700 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	701 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	702 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	703 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	704 ComplexMatrix tmp = sigma * b.hermitian () * b;
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	705 const double *pB = permB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	706 Complex *p = AminusSigmaB.fortran_vec ();
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	707
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	708 if (permB.numel ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	709 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	710 for (octave_idx_type j = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	711 j < b.cols (); j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	712 for (octave_idx_type i = 0;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	713 i < b.rows (); i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	714 *p++ -= tmp.xelem (static_cast<octave_idx_type>(pB[i]),
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	715 static_cast<octave_idx_type>(pB[j]));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	716 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	717 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	718 AminusSigmaB -= tmp;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	719 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	720 else
20230 e914b5399c67 Use in-place operators in C++ code where possible. Rik <rik@octave.org> parents: 19864 diff changeset	721 AminusSigmaB -= sigma * b;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	722 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	723 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	724 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	725 Complex *p = AminusSigmaB.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	726
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	727 for (octave_idx_type i = 0; i < n; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	728 p[i*(n+1)] -= sigma;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	729 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	730
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	731 ComplexLU fact (AminusSigmaB);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	732
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	733 L = fact.P ().transpose () * fact.L ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	734 U = fact.U ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	735 for (octave_idx_type j = 0; j < n; j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	736 P[j] = Q[j] = j;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	737
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	738 // Test condition number of LU decomposition
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	739 double minU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	740 double maxU = octave_NaN;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	741 for (octave_idx_type j = 0; j < n; j++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	742 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	743 double d = std::abs (U.xelem (j,j));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	744 if (xisnan (minU) \|\| d < minU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	745 minU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	746
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	747 if (xisnan (maxU) \|\| d > maxU)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	748 maxU = d;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	749 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	750
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	751 double rcond = (minU / maxU);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	752 volatile double rcond_plus_one = rcond + 1.0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	753
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	754 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
19410 95c533ed464b use warning IDs for all warnings in liboctave John W. Eaton <jwe@octave.org> parents: 19269 diff changeset	755 warn_convergence ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	756
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	757 return true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	758 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	759
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	760 template <class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	761 octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	762 EigsRealSymmetricMatrix (const M& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	763 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	764 octave_idx_type &info, Matrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	765 ColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	766 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	767 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	768 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	769 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	770 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	771 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	772 octave_idx_type mode = 1;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	773 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	774 bool note3 = false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	775 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	776 double sigma = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	777 M bt;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	778
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	779 if (m.rows () != m.cols ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	780 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	781 (*current_liboctave_error_handler) ("eigs: A must be square");
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	782 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	783 }
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	784 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	785 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	786 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	787 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	788 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	789 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	790
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	791 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	792 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	793 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	794 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	795 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	796 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	797 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	798
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	799 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	800 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	801 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	802 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	803 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	804 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	805
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	806 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	807 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	808 p = k * 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	809
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	810 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	811 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	812
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	813 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	814 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	815 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	816
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	817 if (k < 1 \|\| k > n - 2)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	818 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	819 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	820 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1-1).\n"
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	821 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	822 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	823 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	824
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	825 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	826 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	827 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	828 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	829 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	830 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	831
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	832 if (have_b && cholB && permB.numel () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	833 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	834 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	835 if (permB.numel () != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	836 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	837 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	838 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	839 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	840 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	841 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	842 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	843 Array<bool> checked (dim_vector (n, 1), false);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	844 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	845 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	846 octave_idx_type bidx =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	847 static_cast<octave_idx_type> (permB(i));
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	848 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	849 \|\| D_NINT (bidx) != bidx)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	850 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	851 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	852 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	853 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	854 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	855 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	856 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	857 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	858
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	859 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	860 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	861 && typ != "SI")
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	862 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	863 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	864 ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	865 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	866 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	867
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	868 if (typ == "LI" \|\| typ == "SI" \|\| typ == "LR" \|\| typ == "SR")
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	869 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	870 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	871 ("eigs: invalid sigma value for real symmetric problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	872 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	873 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	874
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	875 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	876 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	877 // See Note 3 dsaupd
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	878 note3 = true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	879 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	880 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	881 bt = b;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	882 b = b.transpose ();
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	883 if (permB.numel () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	884 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	885 permB = ColumnVector (n);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	886 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	887 permB(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	888 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	889 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	890 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	891 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	892 if (! make_cholb (b, bt, permB))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	893 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	894 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	895 ("eigs: The matrix B is not positive definite");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	896 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	897 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	898 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	899 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	900
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	901 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	902 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	903
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	904 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	905 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	906 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	907 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	908 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	909 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	910 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	911 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	912 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	913 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	914 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	915 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	916
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	917 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	918 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	919
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	920 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	921 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	922 octave_idx_type lwork = p * (p + 8);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	923
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	924 OCTAVE_LOCAL_BUFFER (double, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	925 OCTAVE_LOCAL_BUFFER (double, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	926 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	927 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	928
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	929 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	930 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	931 F77_FUNC (dsaupd, DSAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	932 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	933 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	934 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	935 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	936 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	937
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	938 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	939 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	940 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	941 ("eigs: unrecoverable exception encountered in dsaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	942 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	943 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	944
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	945 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	946 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	947 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	948 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	949 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	950 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	951 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	952 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	953 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	954 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	955
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	956 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	957 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	958 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	959 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	960 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	961 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	962 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	963 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	964
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	965 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	966 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	967 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	968 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	969 Matrix mtmp (n,1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	970 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	971 mtmp(i,0) = workd[i + iptr(0) - 1];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	972
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	973 mtmp = utsolve (bt, permB, m * ltsolve (b, permB, mtmp));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	974
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	975 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	976 workd[i+iptr(1)-1] = mtmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	977 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	978 else if (! vector_product (m, workd + iptr(0) - 1,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	979 workd + iptr(1) - 1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	980 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	981 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	982 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	983 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	984 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	985 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	986 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	987 ("eigs: error %d in dsaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	988 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	989 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	990 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	991 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	992 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	993 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	994
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	995 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	996
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	997 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	998 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	999 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1000 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1001 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1002 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1003 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1004 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1005 octave_idx_type *sel = s.fortran_vec ();
333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1006
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1007 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1008 double *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1009
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1010 eig_val.resize (k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1011 double *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1012
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1013 F77_FUNC (dseupd, DSEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1014 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1015 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1016 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1017 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1018 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1019
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1020 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1021 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1022 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1023 ("eigs: unrecoverable exception encountered in dseupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1024 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1025 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1026 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1027 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1028 if (info2 == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1029 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1030 octave_idx_type k2 = k / 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1031 if (typ != "SM" && typ != "BE")
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1032 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1033 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1034 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1035 double dtmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1036 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1037 d[k - i - 1] = dtmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1038 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1039 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1040
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1041 if (rvec)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1042 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1043 if (typ != "SM" && typ != "BE")
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1044 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1045 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1046
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1047 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1048 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1049 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1050 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1051
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1052 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1053 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1054
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1055 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1056 dtmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1057
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1058 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1059 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1060
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1061 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1062 z[off2 + j] = dtmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1063 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1064 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1065
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1066 if (note3)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1067 eig_vec = ltsolve (b, permB, eig_vec);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1068 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1069 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1070 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1071 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1072 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1073 ("eigs: error %d in dseupd", info2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1074 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1075 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1076 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1077
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1078 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1079 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1080
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1081 template <class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1082 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1083 EigsRealSymmetricMatrixShift (const M& m, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1084 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1085 octave_idx_type &info, Matrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1086 ColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1087 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1088 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1089 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1090 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1091 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1092 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1093 octave_idx_type mode = 3;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1094 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1095 std::string typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1096
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1097 if (m.rows () != m.cols ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1098 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1099 (*current_liboctave_error_handler) ("eigs: A must be square");
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1100 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1101 }
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1102 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1103 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1104 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1105 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1106 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1107 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1108
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1109 // FIXME: The "SM" type for mode 1 seems unstable though faster!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1110 //if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1111 // return EigsRealSymmetricMatrix (m, "SM", k, p, info, eig_vec, eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1112 // _b, permB, resid, os, tol, rvec, cholB,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1113 // disp, maxit);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1114
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1115 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1116 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1117 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1118 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1119 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1120 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1121 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1122
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1123 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1124 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1125 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1126 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1127 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1128 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1129
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1130 if (k <= 0 \|\| k >= n - 1)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1131 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1132 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1133 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1-1).\n"
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1134 " Use 'eig (full (A))' instead");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1135 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1136 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1137
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1138 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1139 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1140 p = k * 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1141
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1142 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1143 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1144
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1145 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1146 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1147 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1148
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1149 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1150 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1151 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1152 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1153 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1154 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1155
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1156 if (have_b && cholB && permB.numel () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1157 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1158 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1159 if (permB.numel () != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1160 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1161 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1162 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1163 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1164 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1165 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1166 Array<bool> checked (dim_vector (n, 1), false);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1167 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1168 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1169 octave_idx_type bidx =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1170 static_cast<octave_idx_type> (permB(i));
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1171 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1172 \|\| D_NINT (bidx) != bidx)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1173 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1174 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1175 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1176 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1177 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1178 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1179 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1180 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1181
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1182 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1183 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1184 bmat = 'G';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1185
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1186 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1187 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1188
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1189 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1190 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1191 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1192 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1193 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1194 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1195 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1196 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1197 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1198 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1199 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1200 // ip(7) to ip(10) return values
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1201
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1202 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1203 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1204
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1205 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1206 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1207 M L, U;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1208
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1209 OCTAVE_LOCAL_BUFFER (octave_idx_type, P, (have_b ? b.rows () : m.rows ()));
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1210 OCTAVE_LOCAL_BUFFER (octave_idx_type, Q, (have_b ? b.cols () : m.cols ()));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1211
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1212 if (! LuAminusSigmaB (m, b, cholB, permB, sigma, L, U, P, Q))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1213 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1214
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1215 octave_idx_type lwork = p * (p + 8);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1216
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1217 OCTAVE_LOCAL_BUFFER (double, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1218 OCTAVE_LOCAL_BUFFER (double, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1219 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1220 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1221
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1222 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1223 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1224 F77_FUNC (dsaupd, DSAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1225 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1226 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1227 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1228 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1229 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1230
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1231 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1232 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1233 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1234 ("eigs: unrecoverable exception encountered in dsaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1235 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1236 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1237
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1238 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1239 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1240 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1241 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1242 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1243 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1244 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1245 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1246 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1247 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1248
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1249 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1250 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1251 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1252 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1253 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1254 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1255 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1256 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1257
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1258 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1259 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1260 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1261 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1262 if (ido == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1263 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1264 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1265
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1266 vector_product (m, workd+iptr(0)-1, dtmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1267
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1268 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1269
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1270 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1271 tmp(i,0) = dtmp[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1272
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1273 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1274
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1275 double *ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1276 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1277 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1278 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1279 else if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1280 vector_product (b, workd+iptr(0)-1, workd+iptr(1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1281 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1282 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1283 double *ip2 = workd+iptr(2)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1284 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1285
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1286 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1287 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1288
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1289 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1290
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1291 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1292 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1293 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1294 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1295 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1296 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1297 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1298 if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1299 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1300 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1301 workd[iptr(0) + i - 1] = workd[iptr(1) + i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1302 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1303 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1304 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1305 double *ip2 = workd+iptr(0)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1306 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1307
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1308 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1309 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1310
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1311 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1312
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1313 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1314 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1315 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1316 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1317 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1318 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1319 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1320 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1321 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1322 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1323 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1324 ("eigs: error %d in dsaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1325 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1326 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1327 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1328 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1329 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1330 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1331
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1332 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1333
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1334 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1335 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1336 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1337 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1338 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1339 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1340 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1341 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1342 octave_idx_type *sel = s.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1343
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1344 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1345 double *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1346
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1347 eig_val.resize (k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1348 double *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1349
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1350 F77_FUNC (dseupd, DSEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1351 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1352 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1353 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1354 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1355 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1356
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1357 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1358 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1359 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1360 ("eigs: unrecoverable exception encountered in dseupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1361 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1362 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1363 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1364 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1365 if (info2 == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1366 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1367 octave_idx_type k2 = k / 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1368 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1369 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1370 double dtmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1371 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1372 d[k - i - 1] = dtmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1373 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1374
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1375 if (rvec)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1376 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1377 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1378
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1379 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1380 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1381 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1382 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1383
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1384 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1385 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1386
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1387 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1388 dtmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1389
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1390 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1391 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1392
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1393 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1394 z[off2 + j] = dtmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1395 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1396 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1397 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1398 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1399 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1400 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1401 ("eigs: error %d in dseupd", info2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1402 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1403 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1404 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1405
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1406 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1407 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1408
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1409 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1410 EigsRealSymmetricFunc (EigsFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1411 const std::string &_typ, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1412 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1413 octave_idx_type &info, Matrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1414 ColumnVector &eig_val, ColumnVector &resid,
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	1415 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1416 bool /* cholB */, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1417 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1418 std::string typ (_typ);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1419 bool have_sigma = (sigma ? true : false);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1420 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1421 octave_idx_type mode = 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1422 int err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1423
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1424 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1425 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1426 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1427 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1428 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1429 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1430 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1431
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1432 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1433 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1434 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1435 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1436 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1437 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1438
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1439 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1440 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1441 p = k * 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1442
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1443 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1444 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1445
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1446 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1447 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1448 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1449
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1450 if (k <= 0 \|\| k >= n - 1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1451 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1452 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1453 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1454 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1455 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1456 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1457
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1458 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1459 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1460 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1461 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1462 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1463 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1464
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1465 if (! have_sigma)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1466 {
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1467 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1468 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1469 && typ != "SI")
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1470 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1471 ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1472
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1473 if (typ == "LI" \|\| typ == "SI" \|\| typ == "LR" \|\| typ == "SR")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1474 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1475 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1476 ("eigs: invalid sigma value for real symmetric problem");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1477 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1478 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1479
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1480 if (typ == "SM")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1481 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1482 typ = "LM";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1483 sigma = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1484 mode = 3;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1485 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1486 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1487 else if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1488 typ = "SM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1489 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1490 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1491 typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1492 mode = 3;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1493 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1494
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1495 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1496 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1497
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1498 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1499 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1500 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1501 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1502 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1503 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1504 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1505 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1506 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1507 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1508 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1509 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1510
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1511 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1512 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1513
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1514 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1515 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1516 octave_idx_type lwork = p * (p + 8);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1517
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1518 OCTAVE_LOCAL_BUFFER (double, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1519 OCTAVE_LOCAL_BUFFER (double, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1520 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1521 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1522
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1523 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1524 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1525 F77_FUNC (dsaupd, DSAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1526 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1527 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1528 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1529 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1530 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1531
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1532 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1533 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1534 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1535 ("eigs: unrecoverable exception encountered in dsaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1536 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1537 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1538
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1539 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1540 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1541 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1542 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1543 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1544 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1545 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1546 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1547 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1548 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1549
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1550 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1551 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1552 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1553 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1554 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1555 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1556 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1557 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1558
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1559
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1560 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1561 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1562 double *ip2 = workd + iptr(0) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1563 ColumnVector x(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1564
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1565 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1566 x(i) = *ip2++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1567
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1568 ColumnVector y = fun (x, err);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1569
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1570 if (err)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1571 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1572
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1573 ip2 = workd + iptr(1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1574 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1575 *ip2++ = y(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1576 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1577 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1578 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1579 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1580 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1581 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1582 ("eigs: error %d in dsaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1583 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1584 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1585 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1586 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1587 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1588 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1589
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1590 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1591
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1592 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1593 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1594 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1595 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1596 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1597 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1598 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1599 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1600 octave_idx_type *sel = s.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1601
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1602 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1603 double *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1604
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1605 eig_val.resize (k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1606 double *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1607
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1608 F77_FUNC (dseupd, DSEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1609 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1610 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1611 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1612 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1613 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1614
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1615 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1616 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1617 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1618 ("eigs: unrecoverable exception encountered in dseupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1619 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1620 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1621 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1622 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1623 if (info2 == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1624 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1625 octave_idx_type k2 = k / 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1626 if (typ != "SM" && typ != "BE")
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1627 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1628 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1629 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1630 double dtmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1631 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1632 d[k - i - 1] = dtmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1633 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1634 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1635
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1636 if (rvec)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1637 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1638 if (typ != "SM" && typ != "BE")
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1639 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1640 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1641
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1642 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1643 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1644 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1645 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1646
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1647 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1648 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1649
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1650 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1651 dtmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1652
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1653 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1654 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1655
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1656 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1657 z[off2 + j] = dtmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1658 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1659 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1660 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1661 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1662 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1663 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1664 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1665 ("eigs: error %d in dseupd", info2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1666 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1667 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1668 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1669
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1670 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1671 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1672
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1673 template <class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1674 octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1675 EigsRealNonSymmetricMatrix (const M& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1676 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1677 octave_idx_type &info, ComplexMatrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1678 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1679 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1680 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1681 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1682 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1683 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1684 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1685 octave_idx_type mode = 1;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1686 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1687 bool note3 = false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1688 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1689 double sigmar = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1690 double sigmai = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1691 M bt;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1692
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1693 if (m.rows () != m.cols ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1694 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1695 (*current_liboctave_error_handler) ("eigs: A must be square");
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1696 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1697 }
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1698 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1699 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1700 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1701 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1702 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1703 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1704
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1705 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1706 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1707 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1708 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1709 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1710 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1711 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1712
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1713 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1714 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1715 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1716 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1717 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1718 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1719
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1720 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1721 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1722 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1723
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1724 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1725 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1726
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1727 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1728 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1729 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1730
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1731 if (k <= 0 \|\| k >= n - 1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1732 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1733 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1734 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1735 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1736 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1737 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1738
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	1739 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1740 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1741 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1742 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1743 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1744 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1745
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1746 if (have_b && cholB && permB.numel () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1747 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1748 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1749 if (permB.numel () != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1750 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1751 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1752 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1753 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1754 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1755 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1756 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1757 Array<bool> checked (dim_vector (n, 1), false);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1758 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1759 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1760 octave_idx_type bidx =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1761 static_cast<octave_idx_type> (permB(i));
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1762 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1763 \|\| D_NINT (bidx) != bidx)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1764 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1765 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1766 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1767 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1768 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1769 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1770 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1771 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1772
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1773 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1774 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	1775 && typ != "SI")
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1776 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1777 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1778 ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1779 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1780 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1781
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1782 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1783 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1784 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1785 ("eigs: invalid sigma value for unsymmetric problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1786 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1787 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1788
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1789 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1790 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1791 // See Note 3 dsaupd
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1792 note3 = true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1793 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1794 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1795 bt = b;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1796 b = b.transpose ();
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	1797 if (permB.numel () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1798 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1799 permB = ColumnVector (n);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1800 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1801 permB(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1802 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1803 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1804 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1805 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1806 if (! make_cholb (b, bt, permB))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1807 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1808 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1809 ("eigs: The matrix B is not positive definite");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1810 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1811 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1812 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1813 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1814
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1815 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1816 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1817
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1818 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1819 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1820 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1821 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1822 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1823 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1824 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1825 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1826 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1827 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1828 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1829 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1830
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1831 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1832 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1833
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1834 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1835 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1836 octave_idx_type lwork = 3 * p * (p + 2);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1837
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1838 OCTAVE_LOCAL_BUFFER (double, v, n * (p + 1));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1839 OCTAVE_LOCAL_BUFFER (double, workl, lwork + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1840 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1841 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1842
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1843 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1844 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1845 F77_FUNC (dnaupd, DNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1846 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	1847 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1848 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1849 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1850 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1851
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1852 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1853 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1854 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1855 ("eigs: unrecoverable exception encountered in dnaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1856 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1857 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1858
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1859 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1860 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1861 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1862 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1863 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1864 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1865 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1866 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1867 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1868 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1869
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1870 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1871 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1872 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1873 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1874 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1875 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1876 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1877 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1878
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1879 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1880 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1881 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1882 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1883 Matrix mtmp (n,1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1884 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1885 mtmp(i,0) = workd[i + iptr(0) - 1];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1886
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1887 mtmp = utsolve (bt, permB, m * ltsolve (b, permB, mtmp));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1888
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1889 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1890 workd[i+iptr(1)-1] = mtmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1891 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1892 else if (! vector_product (m, workd + iptr(0) - 1,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1893 workd + iptr(1) - 1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1894 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1895 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1896 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1897 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1898 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1899 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1900 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1901 ("eigs: error %d in dnaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1902 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1903 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1904 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1905 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1906 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1907 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1908
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1909 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1910
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1911 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1912 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1913 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1914 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1915 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1916 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1917 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1918 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	1919 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1920
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1921 // FIXME: initialize eig_vec2 to zero; apparently dneupd can skip
12198 30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1922 // the assignment to elements of Z that represent imaginary parts.
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1923 // Found with valgrind and
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1924 //
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1925 // A = [1,0,0,-1;0,1,0,0;0,0,1,0;0,0,2,1];
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1926 // [vecs, vals, f] = eigs (A, 1)
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1927
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	1928 Matrix eig_vec2 (n, k + 1, 0.0);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1929 double *z = eig_vec2.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1930
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1931 OCTAVE_LOCAL_BUFFER (double, dr, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1932 OCTAVE_LOCAL_BUFFER (double, di, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1933 OCTAVE_LOCAL_BUFFER (double, workev, 3 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1934 for (octave_idx_type i = 0; i < k+1; i++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1935 dr[i] = di[i] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1936
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1937 F77_FUNC (dneupd, DNEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1938 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, dr, di, z, n, sigmar,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1939 sigmai, workev, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1940 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1941 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1942 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1943
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1944 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1945 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1946 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1947 ("eigs: unrecoverable exception encountered in dneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1948 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1949 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1950 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1951 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1952 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1953 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1954
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	1955 if (info2 == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1956 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1957 octave_idx_type jj = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1958 for (octave_idx_type i = 0; i < k+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1959 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1960 if (dr[i] == 0.0 && di[i] == 0.0 && jj == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1961 jj++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1962 else
15020 560317fd5977 maint: Cuddle open bracket used for indexing C++ arrays in source code. Rik <rik@octave.org> parents: 15018 diff changeset	1963 d[i-jj] = Complex (dr[i], di[i]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1964 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	1965 if (jj == 0 && ! rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1966 for (octave_idx_type i = 0; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1967 d[i] = d[i+1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1968
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1969 octave_idx_type k2 = k / 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1970 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1971 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1972 Complex dtmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1973 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1974 d[k - i - 1] = dtmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1975 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1976 eig_val.resize (k);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1977
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1978 if (rvec)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1979 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1980 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1981
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1982 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1983 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1984 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1985 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1986
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1987 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1988 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1989
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1990 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1991 dtmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1992
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1993 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1994 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1995
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1996 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1997 z[off2 + j] = dtmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1998 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1999
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2000 eig_vec.resize (n, k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2001 octave_idx_type i = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2002 while (i < k)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2003 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2004 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2005 octave_idx_type off2 = (i+1) * n;
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2006 if (std::imag (eig_val(i)) == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2007 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2008 for (octave_idx_type j = 0; j < n; j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2009 eig_vec(j,i) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2010 Complex (z[j+off1],0.);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2011 i++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2012 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2013 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2014 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2015 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2016 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2017 eig_vec(j,i) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2018 Complex (z[j+off1],z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2019 if (i < k - 1)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2020 eig_vec(j,i+1) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2021 Complex (z[j+off1],-z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2022 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2023 i+=2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2024 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2025 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2026
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2027 if (note3)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2028 eig_vec = ltsolve (M(b), permB, eig_vec);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2029 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2030 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2031 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2032 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2033 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2034 ("eigs: error %d in dneupd", info2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2035 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2036 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2037 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2038
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2039 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2040 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2041
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2042 template <class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2043 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2044 EigsRealNonSymmetricMatrixShift (const M& m, double sigmar,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2045 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2046 octave_idx_type &info,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2047 ComplexMatrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2048 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2049 ColumnVector &permB, ColumnVector &resid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2050 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2051 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2052 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2053 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2054 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2055 octave_idx_type mode = 3;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2056 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2057 std::string typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2058 double sigmai = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2059
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2060 if (m.rows () != m.cols ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2061 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2062 (*current_liboctave_error_handler) ("eigs: A must be square");
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2063 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2064 }
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2065 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2066 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2067 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2068 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2069 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2070 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2071
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2072 // FIXME: The "SM" type for mode 1 seems unstable though faster!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2073 //if (! std::abs (sigmar))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2074 // return EigsRealNonSymmetricMatrix (m, "SM", k, p, info, eig_vec, eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2075 // _b, permB, resid, os, tol, rvec, cholB,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2076 // disp, maxit);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2077
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2078 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2079 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2080 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2081 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2082 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2083 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2084 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2085
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2086 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2087 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2088 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2089 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2090 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2091 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2092
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2093 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2094 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2095 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2096
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2097 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2098 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2099
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2100 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2101 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2102 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2103
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2104 if (k <= 0 \|\| k >= n - 1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2105 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2106 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2107 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2108 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2109 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2110 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2111
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2112 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2113 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2114 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2115 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2116 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2117 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2118
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	2119 if (have_b && cholB && permB.numel () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2120 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2121 // Check that we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	2122 if (permB.numel () != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2123 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2124 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2125 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2126 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2127 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2128 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2129 Array<bool> checked (dim_vector (n, 1), false);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2130 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2131 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2132 octave_idx_type bidx =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2133 static_cast<octave_idx_type> (permB(i));
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2134 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2135 \|\| D_NINT (bidx) != bidx)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2136 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2137 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2138 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2139 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2140 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2141 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2142 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2143 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2144
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2145 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2146 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2147 bmat = 'G';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2148
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2149 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2150 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2151
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2152 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2153 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2154 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2155 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2156 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2157 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2158 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2159 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2160 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2161 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2162 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2163 // ip(7) to ip(10) return values
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2164
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2165 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2166 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2167
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2168 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2169 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2170 M L, U;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2171
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2172 OCTAVE_LOCAL_BUFFER (octave_idx_type, P, (have_b ? b.rows () : m.rows ()));
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2173 OCTAVE_LOCAL_BUFFER (octave_idx_type, Q, (have_b ? b.cols () : m.cols ()));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2174
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2175 if (! LuAminusSigmaB (m, b, cholB, permB, sigmar, L, U, P, Q))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2176 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2177
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2178 octave_idx_type lwork = 3 * p * (p + 2);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2179
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2180 OCTAVE_LOCAL_BUFFER (double, v, n * (p + 1));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2181 OCTAVE_LOCAL_BUFFER (double, workl, lwork + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2182 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2183 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2184
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2185 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2186 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2187 F77_FUNC (dnaupd, DNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2188 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2189 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2190 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2191 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2192 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2193
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2194 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2195 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2196 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2197 ("eigs: unrecoverable exception encountered in dsaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2198 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2199 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2200
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2201 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2202 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2203 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2204 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2205 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2206 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2207 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2208 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2209 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2210 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2211
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2212 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2213 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2214 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2215 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2216 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2217 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2218 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2219 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2220
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2221 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2222 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2223 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2224 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2225 if (ido == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2226 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2227 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2228
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2229 vector_product (m, workd+iptr(0)-1, dtmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2230
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2231 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2232
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2233 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2234 tmp(i,0) = dtmp[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2235
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2236 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2237
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2238 double *ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2239 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2240 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2241 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2242 else if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2243 vector_product (b, workd+iptr(0)-1, workd+iptr(1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2244 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2245 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2246 double *ip2 = workd+iptr(2)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2247 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2248
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2249 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2250 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2251
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2252 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2253
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2254 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2255 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2256 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2257 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2258 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2259 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2260 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2261 if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2262 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2263 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2264 workd[iptr(0) + i - 1] = workd[iptr(1) + i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2265 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2266 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2267 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2268 double *ip2 = workd+iptr(0)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2269 Matrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2270
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2271 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2272 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2273
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2274 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2275
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2276 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2277 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2278 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2279 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2280 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2281 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2282 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2283 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2284 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2285 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2286 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2287 ("eigs: error %d in dsaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2288 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2289 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2290 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2291 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2292 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2293 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2294
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2295 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2296
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2297 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2298 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2299 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2300 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2301 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2302 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2303 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2304 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	2305 octave_idx_type *sel = s.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2306
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2307 // FIXME: initialize eig_vec2 to zero; apparently dneupd can skip
12198 30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2308 // the assignment to elements of Z that represent imaginary parts.
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2309 // Found with valgrind and
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2310 //
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2311 // A = [1,0,0,-1;0,1,0,0;0,0,1,0;0,0,2,1];
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2312 // [vecs, vals, f] = eigs (A, 1)
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2313
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2314 Matrix eig_vec2 (n, k + 1, 0.0);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2315 double *z = eig_vec2.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2316
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2317 OCTAVE_LOCAL_BUFFER (double, dr, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2318 OCTAVE_LOCAL_BUFFER (double, di, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2319 OCTAVE_LOCAL_BUFFER (double, workev, 3 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2320 for (octave_idx_type i = 0; i < k+1; i++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2321 dr[i] = di[i] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2322
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2323 F77_FUNC (dneupd, DNEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2324 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, dr, di, z, n, sigmar,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2325 sigmai, workev, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2326 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2327 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2328 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2329
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2330 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2331 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2332 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2333 ("eigs: unrecoverable exception encountered in dneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2334 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2335 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2336 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2337 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2338 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2339 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2340
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2341 if (info2 == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2342 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2343 octave_idx_type jj = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2344 for (octave_idx_type i = 0; i < k+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2345 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2346 if (dr[i] == 0.0 && di[i] == 0.0 && jj == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2347 jj++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2348 else
15020 560317fd5977 maint: Cuddle open bracket used for indexing C++ arrays in source code. Rik <rik@octave.org> parents: 15018 diff changeset	2349 d[i-jj] = Complex (dr[i], di[i]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2350 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2351 if (jj == 0 && ! rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2352 for (octave_idx_type i = 0; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2353 d[i] = d[i+1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2354
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2355 octave_idx_type k2 = k / 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2356 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2357 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2358 Complex dtmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2359 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2360 d[k - i - 1] = dtmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2361 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2362 eig_val.resize (k);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2363
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2364 if (rvec)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2365 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2366 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2367
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2368 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2369 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2370 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2371 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2372
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2373 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2374 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2375
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2376 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2377 dtmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2378
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2379 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2380 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2381
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2382 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2383 z[off2 + j] = dtmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2384 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2385
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2386 eig_vec.resize (n, k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2387 octave_idx_type i = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2388 while (i < k)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2389 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2390 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2391 octave_idx_type off2 = (i+1) * n;
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2392 if (std::imag (eig_val(i)) == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2393 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2394 for (octave_idx_type j = 0; j < n; j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2395 eig_vec(j,i) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2396 Complex (z[j+off1],0.);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2397 i++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2398 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2399 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2400 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2401 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2402 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2403 eig_vec(j,i) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2404 Complex (z[j+off1],z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2405 if (i < k - 1)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2406 eig_vec(j,i+1) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2407 Complex (z[j+off1],-z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2408 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2409 i+=2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2410 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2411 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2412 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2413 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2414 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2415 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2416 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2417 ("eigs: error %d in dneupd", info2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2418 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2419 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2420 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2421
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2422 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2423 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2424
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2425 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2426 EigsRealNonSymmetricFunc (EigsFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2427 const std::string &_typ, double sigmar,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2428 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2429 octave_idx_type &info, ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2430 ComplexColumnVector &eig_val, ColumnVector &resid,
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	2431 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2432 bool /* cholB */, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2433 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2434 std::string typ (_typ);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2435 bool have_sigma = (sigmar ? true : false);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2436 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2437 double sigmai = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2438 octave_idx_type mode = 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2439 int err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2440
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2441 if (resid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2442 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2443 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2444 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2445 resid = ColumnVector (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2446 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2447 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2448
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2449 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2450 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2451 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2452 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2453 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2454 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2455
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2456 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2457 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2458 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2459
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2460 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2461 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2462
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2463 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2464 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2465 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2466
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2467 if (k <= 0 \|\| k >= n - 1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2468 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2469 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2470 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2471 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2472 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2473 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2474
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2475 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2476 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2477 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2478 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2479 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2480 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2481
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2482
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2483 if (! have_sigma)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2484 {
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2485 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2486 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2487 && typ != "SI")
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2488 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2489 ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2490
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2491 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2492 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2493 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2494 ("eigs: invalid sigma value for unsymmetric problem");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2495 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2496 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2497
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2498 if (typ == "SM")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2499 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2500 typ = "LM";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2501 sigmar = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2502 mode = 3;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2503 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2504 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2505 else if (! std::abs (sigmar))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2506 typ = "SM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2507 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2508 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2509 typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2510 mode = 3;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2511 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2512
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2513 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2514 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2515
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2516 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2517 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2518 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2519 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2520 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2521 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2522 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2523 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2524 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2525 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2526 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2527 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2528
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2529 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2530 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2531
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2532 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2533 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2534 octave_idx_type lwork = 3 * p * (p + 2);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2535
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2536 OCTAVE_LOCAL_BUFFER (double, v, n * (p + 1));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2537 OCTAVE_LOCAL_BUFFER (double, workl, lwork + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2538 OCTAVE_LOCAL_BUFFER (double, workd, 3 * n + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2539 double *presid = resid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2540
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2541 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2542 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2543 F77_FUNC (dnaupd, DNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2544 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2545 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2546 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2547 ipntr, workd, workl, lwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2548 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2549
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2550 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2551 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2552 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2553 ("eigs: unrecoverable exception encountered in dnaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2554 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2555 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2556
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2557 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2558 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2559 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2560 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2561 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2562 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2563 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2564 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2565 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2566 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2567
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2568 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2569 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2570 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2571 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2572 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2573 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2574 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2575 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2576
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2577 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2578 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2579 double *ip2 = workd + iptr(0) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2580 ColumnVector x(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2581
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2582 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2583 x(i) = *ip2++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2584
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2585 ColumnVector y = fun (x, err);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2586
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2587 if (err)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2588 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2589
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2590 ip2 = workd + iptr(1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2591 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2592 *ip2++ = y(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2593 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2594 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2595 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2596 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2597 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2598 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2599 ("eigs: error %d in dsaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2600 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2601 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2602 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2603 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2604 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2605 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2606
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2607 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2608
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2609 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2610 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2611 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2612 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2613 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2614 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2615 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2616 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	2617 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2618
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2619 // FIXME: initialize eig_vec2 to zero; apparently dneupd can skip
12198 30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2620 // the assignment to elements of Z that represent imaginary parts.
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2621 // Found with valgrind and
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2622 //
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2623 // A = [1,0,0,-1;0,1,0,0;0,0,1,0;0,0,2,1];
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2624 // [vecs, vals, f] = eigs (A, 1)
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2625
30ca5a0b0e2f don't let uninitialized values escape from DNEUPD John W. Eaton <jwe@octave.org> parents: 12195 diff changeset	2626 Matrix eig_vec2 (n, k + 1, 0.0);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2627 double *z = eig_vec2.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2628
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2629 OCTAVE_LOCAL_BUFFER (double, dr, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2630 OCTAVE_LOCAL_BUFFER (double, di, k + 1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2631 OCTAVE_LOCAL_BUFFER (double, workev, 3 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2632 for (octave_idx_type i = 0; i < k+1; i++)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2633 dr[i] = di[i] = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2634
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2635 F77_FUNC (dneupd, DNEUPD)
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2636 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, dr, di, z, n, sigmar,
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2637 sigmai, workev, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2638 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2), k, tol, presid, p, v, n, iparam,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2639 ipntr, workd, workl, lwork, info2 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2640 F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2641
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2642 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2643 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2644 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2645 ("eigs: unrecoverable exception encountered in dneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2646 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2647 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2648 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2649 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2650 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2651 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2652
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2653 if (info2 == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2654 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2655 octave_idx_type jj = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2656 for (octave_idx_type i = 0; i < k+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2657 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2658 if (dr[i] == 0.0 && di[i] == 0.0 && jj == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2659 jj++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2660 else
15020 560317fd5977 maint: Cuddle open bracket used for indexing C++ arrays in source code. Rik <rik@octave.org> parents: 15018 diff changeset	2661 d[i-jj] = Complex (dr[i], di[i]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2662 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2663 if (jj == 0 && ! rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2664 for (octave_idx_type i = 0; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2665 d[i] = d[i+1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2666
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2667 octave_idx_type k2 = k / 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2668 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2669 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2670 Complex dtmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2671 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2672 d[k - i - 1] = dtmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2673 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2674 eig_val.resize (k);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2675
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2676 if (rvec)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2677 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2678 OCTAVE_LOCAL_BUFFER (double, dtmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2679
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2680 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2681 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2682 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2683 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2684
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2685 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2686 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2687
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2688 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2689 dtmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2690
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2691 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2692 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2693
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2694 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2695 z[off2 + j] = dtmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2696 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2697
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2698 eig_vec.resize (n, k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2699 octave_idx_type i = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2700 while (i < k)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2701 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2702 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2703 octave_idx_type off2 = (i+1) * n;
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2704 if (std::imag (eig_val(i)) == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2705 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2706 for (octave_idx_type j = 0; j < n; j++)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2707 eig_vec(j,i) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2708 Complex (z[j+off1],0.);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2709 i++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2710 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2711 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2712 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2713 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2714 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2715 eig_vec(j,i) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2716 Complex (z[j+off1],z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2717 if (i < k - 1)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2718 eig_vec(j,i+1) =
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2719 Complex (z[j+off1],-z[j+off2]);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2720 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2721 i+=2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2722 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2723 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2724 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2725 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2726 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2727 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2728 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2729 ("eigs: error %d in dneupd", info2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2730 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2731 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2732 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2733
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2734 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2735 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2736
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2737 template <class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2738 octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2739 EigsComplexNonSymmetricMatrix (const M& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2740 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2741 octave_idx_type &info, ComplexMatrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2742 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2743 ColumnVector &permB,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2744 ComplexColumnVector &cresid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2745 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2746 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2747 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2748 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2749 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2750 octave_idx_type mode = 1;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2751 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2752 bool note3 = false;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2753 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2754 Complex sigma = 0.;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2755 M bt;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2756
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2757 if (m.rows () != m.cols ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2758 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2759 (*current_liboctave_error_handler) ("eigs: A must be square");
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2760 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2761 }
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2762 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2763 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2764 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2765 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2766 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2767 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2768
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2769 if (cresid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2770 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2771 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2772 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2773 Array<double> rr (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2774 Array<double> ri (octave_rand::vector (n));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2775 cresid = ComplexColumnVector (n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2776 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2777 cresid(i) = Complex (rr(i),ri(i));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2778 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2779 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2780
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2781 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2782 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2783 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2784 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2785 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2786 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2787
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2788 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2789 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2790 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2791
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2792 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2793 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2794
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2795 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2796 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2797 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2798
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2799 if (k <= 0 \|\| k >= n - 1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2800 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2801 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2802 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2803 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2804 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2805 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2806
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	2807 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2808 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2809 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2810 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2811 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2812 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2813
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	2814 if (have_b && cholB && permB.numel () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2815 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2816 // Check the we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	2817 if (permB.numel () != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2818 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2819 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2820 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2821 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2822 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2823 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2824 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2825 Array<bool> checked (dim_vector (n, 1), false);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2826 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2827 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2828 octave_idx_type bidx =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2829 static_cast<octave_idx_type> (permB(i));
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2830 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2831 \|\| D_NINT (bidx) != bidx)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2832 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2833 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2834 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2835 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2836 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2837 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2838 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2839 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2840
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2841 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2842 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	2843 && typ != "SI")
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2844 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2845 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2846 ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2847 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2848 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2849
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2850 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2851 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2852 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2853 ("eigs: invalid sigma value for complex problem");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2854 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2855 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2856
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2857 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2858 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2859 // See Note 3 dsaupd
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2860 note3 = true;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2861 if (cholB)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2862 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2863 bt = b;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2864 b = b.hermitian ();
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	2865 if (permB.numel () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2866 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2867 permB = ColumnVector (n);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2868 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2869 permB(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2870 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2871 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2872 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2873 {
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2874 if (! make_cholb (b, bt, permB))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2875 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2876 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2877 ("eigs: The matrix B is not positive definite");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2878 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2879 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2880 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2881 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2882
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2883 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2884 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2885
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2886 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2887 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2888 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2889 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2890 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2891 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2892 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2893 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2894 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2895 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2896 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2897 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2898
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2899 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2900 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2901
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2902 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2903 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2904 octave_idx_type lwork = p * (3 * p + 5);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2905
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2906 OCTAVE_LOCAL_BUFFER (Complex, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2907 OCTAVE_LOCAL_BUFFER (Complex, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2908 OCTAVE_LOCAL_BUFFER (Complex, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2909 OCTAVE_LOCAL_BUFFER (double, rwork, p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2910 Complex *presid = cresid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2911
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2912 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2913 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2914 F77_FUNC (znaupd, ZNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2915 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	2916 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2917 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2918 ipntr, workd, workl, lwork, rwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2919 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2920
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2921 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2922 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2923 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2924 ("eigs: unrecoverable exception encountered in znaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2925 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2926 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2927
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2928 if (disp > 0 && ! xisnan (workl[iptr (5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2929 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2930 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2931 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2932 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2933 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2934 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2935 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2936 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2937 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2938
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2939 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2940 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2941 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2942 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2943 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2944 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2945 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2946 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2947
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2948 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2949 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2950 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2951 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2952 ComplexMatrix mtmp (n,1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2953 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2954 mtmp(i,0) = workd[i + iptr(0) - 1];
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2955 mtmp = utsolve (bt, permB, m * ltsolve (b, permB, mtmp));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2956 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2957 workd[i+iptr(1)-1] = mtmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2958
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2959 }
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	2960 else if (! vector_product (m, workd + iptr(0) - 1,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2961 workd + iptr(1) - 1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2962 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2963 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2964 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2965 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2966 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2967 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2968 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2969 ("eigs: error %d in znaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2970 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2971 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2972 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2973 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2974 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2975 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2976
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2977 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2978
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2979 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2980 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2981 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2982 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2983 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2984 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2985 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2986 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	2987 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2988
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2989 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2990 Complex *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2991
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2992 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2993 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2994
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2995 OCTAVE_LOCAL_BUFFER (Complex, workev, 2 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2996
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2997 F77_FUNC (zneupd, ZNEUPD)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2998 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma, workev,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	2999 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3000 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3001 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, rwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3002 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3003
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3004 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3005 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3006 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3007 ("eigs: unrecoverable exception encountered in zneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3008 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3009 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3010
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3011 if (info2 == 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3012 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3013 octave_idx_type k2 = k / 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3014 for (octave_idx_type i = 0; i < k2; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3015 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3016 Complex ctmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3017 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3018 d[k - i - 1] = ctmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3019 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3020 eig_val.resize (k);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3021
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3022 if (rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3023 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3024 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3025
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3026 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3027 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3028 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3029 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3030
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3031 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3032 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3033
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3034 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3035 ctmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3036
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3037 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3038 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3039
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3040 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3041 z[off2 + j] = ctmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3042 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3043
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3044 if (note3)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3045 eig_vec = ltsolve (b, permB, eig_vec);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3046 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3047 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3048 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3049 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3050 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3051 ("eigs: error %d in zneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3052 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3053 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3054
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3055 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3056 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3057
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3058 template <class M>
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3059 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3060 EigsComplexNonSymmetricMatrixShift (const M& m, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3061 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3062 octave_idx_type &info,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3063 ComplexMatrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3064 ComplexColumnVector &eig_val, const M& _b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3065 ColumnVector &permB,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3066 ComplexColumnVector &cresid,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3067 std::ostream& os, double tol, bool rvec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3068 bool cholB, int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3069 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3070 M b(_b);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3071 octave_idx_type n = m.cols ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3072 octave_idx_type mode = 3;
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3073 bool have_b = ! b.is_empty ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3074 std::string typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3075
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3076 if (m.rows () != m.cols ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3077 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3078 (*current_liboctave_error_handler) ("eigs: A must be square");
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3079 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3080 }
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3081 if (have_b && (m.rows () != b.rows () \|\| m.rows () != b.cols ()))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3082 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3083 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3084 ("eigs: B must be square and the same size as A");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3085 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3086 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3087
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3088 // FIXME: The "SM" type for mode 1 seems unstable though faster!!
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3089 //if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3090 // return EigsComplexNonSymmetricMatrix (m, "SM", k, p, info, eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3091 // eig_val, _b, permB, cresid, os, tol,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3092 // rvec, cholB, disp, maxit);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3093
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3094 if (cresid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3095 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3096 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3097 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3098 Array<double> rr (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3099 Array<double> ri (octave_rand::vector (n));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3100 cresid = ComplexColumnVector (n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3101 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3102 cresid(i) = Complex (rr(i),ri(i));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3103 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3104 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3105
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3106 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3107 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3108 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3109 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3110 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3111 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3112
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3113 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3114 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3115 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3116
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3117 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3118 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3119
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3120 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3121 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3122 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3123
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3124 if (k <= 0 \|\| k >= n - 1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3125 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3126 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3127 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3128 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3129 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3130 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3131
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3132 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3133 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3134 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3135 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3136 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3137 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3138
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	3139 if (have_b && cholB && permB.numel () != 0)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3140 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3141 // Check that we really have a permutation vector
20232 a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 20230 diff changeset	3142 if (permB.numel () != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3143 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3144 (*current_liboctave_error_handler) ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3145 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3146 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3147 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3148 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3149 Array<bool> checked (dim_vector (n, 1), false);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3150 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3151 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3152 octave_idx_type bidx =
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3153 static_cast<octave_idx_type> (permB(i));
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3154 if (checked(bidx) \|\| bidx < 0 \|\| bidx >= n
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3155 \|\| D_NINT (bidx) != bidx)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3156 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3157 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3158 ("eigs: permB vector invalid");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3159 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3160 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3161 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3162 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3163 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3164
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3165 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3166 if (have_b)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3167 bmat = 'G';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3168
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3169 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3170 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3171
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3172 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3173 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3174 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3175 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3176 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3177 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3178 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3179 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3180 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3181 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3182 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3183 // ip(7) to ip(10) return values
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3184
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3185 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3186 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3187
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3188 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3189 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3190 M L, U;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3191
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3192 OCTAVE_LOCAL_BUFFER (octave_idx_type, P, (have_b ? b.rows () : m.rows ()));
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3193 OCTAVE_LOCAL_BUFFER (octave_idx_type, Q, (have_b ? b.cols () : m.cols ()));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3194
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3195 if (! LuAminusSigmaB (m, b, cholB, permB, sigma, L, U, P, Q))
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3196 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3197
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3198 octave_idx_type lwork = p * (3 * p + 5);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3199
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3200 OCTAVE_LOCAL_BUFFER (Complex, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3201 OCTAVE_LOCAL_BUFFER (Complex, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3202 OCTAVE_LOCAL_BUFFER (Complex, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3203 OCTAVE_LOCAL_BUFFER (double, rwork, p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3204 Complex *presid = cresid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3205
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3206 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3207 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3208 F77_FUNC (znaupd, ZNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3209 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3210 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3211 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3212 ipntr, workd, workl, lwork, rwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3213 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3214
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3215 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3216 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3217 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3218 ("eigs: unrecoverable exception encountered in znaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3219 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3220 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3221
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	3222 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3223 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3224 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3225 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3226 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3227 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3228 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3229 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3230 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3231 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3232
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3233 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3234 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3235 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3236 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3237 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3238 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3239 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3240 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3241
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3242 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3243 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3244 if (have_b)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3245 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3246 if (ido == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3247 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3248 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3249
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3250 vector_product (m, workd+iptr(0)-1, ctmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3251
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3252 ComplexMatrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3253
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3254 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3255 tmp(i,0) = ctmp[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3256
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3257 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3258
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3259 Complex *ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3260 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3261 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3262 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3263 else if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3264 vector_product (b, workd + iptr(0) - 1, workd + iptr(1) - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3265 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3266 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3267 Complex *ip2 = workd+iptr(2)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3268 ComplexMatrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3269
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3270 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3271 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3272
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3273 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3274
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3275 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3276 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3277 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3278 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3279 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3280 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3281 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3282 if (ido == 2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3283 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3284 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3285 workd[iptr(0) + i - 1] =
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3286 workd[iptr(1) + i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3287 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3288 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3289 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3290 Complex *ip2 = workd+iptr(0)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3291 ComplexMatrix tmp(n, 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3292
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3293 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3294 tmp(i,0) = ip2[P[i]];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3295
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3296 lusolve (L, U, tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3297
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3298 ip2 = workd+iptr(1)-1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3299 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3300 ip2[Q[i]] = tmp(i,0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3301 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3302 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3303 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3304 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3305 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3306 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3307 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3308 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3309 ("eigs: error %d in dsaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3310 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3311 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3312 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3313 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3314 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3315 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3316
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3317 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3318
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3319 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3320 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3321 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3322 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3323 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3324 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3325 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3326 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	3327 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3328
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3329 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3330 Complex *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3331
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3332 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3333 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3334
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3335 OCTAVE_LOCAL_BUFFER (Complex, workev, 2 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3336
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3337 F77_FUNC (zneupd, ZNEUPD)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3338 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma, workev,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3339 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3340 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3341 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, rwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3342 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3343
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3344 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3345 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3346 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3347 ("eigs: unrecoverable exception encountered in zneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3348 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3349 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3350
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3351 if (info2 == 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3352 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3353 octave_idx_type k2 = k / 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3354 for (octave_idx_type i = 0; i < k2; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3355 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3356 Complex ctmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3357 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3358 d[k - i - 1] = ctmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3359 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3360 eig_val.resize (k);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3361
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3362 if (rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3363 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3364 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3365
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3366 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3367 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3368 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3369 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3370
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3371 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3372 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3373
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3374 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3375 ctmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3376
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3377 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3378 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3379
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3380 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3381 z[off2 + j] = ctmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3382 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3383 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3384 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3385 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3386 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3387 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3388 ("eigs: error %d in zneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3389 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3390 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3391
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3392 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3393 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3394
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3395 octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3396 EigsComplexNonSymmetricFunc (EigsComplexFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3397 const std::string &_typ, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3398 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3399 octave_idx_type &info, ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3400 ComplexColumnVector &eig_val,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3401 ComplexColumnVector &cresid, std::ostream& os,
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3402 double tol, bool rvec, bool /* cholB */,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3403 int disp, int maxit)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3404 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3405 std::string typ (_typ);
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3406 bool have_sigma = (std::abs (sigma) ? true : false);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3407 char bmat = 'I';
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3408 octave_idx_type mode = 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3409 int err = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3410
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3411 if (cresid.is_empty ())
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3412 {
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3413 std::string rand_dist = octave_rand::distribution ();
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3414 octave_rand::distribution ("uniform");
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3415 Array<double> rr (octave_rand::vector (n));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3416 Array<double> ri (octave_rand::vector (n));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3417 cresid = ComplexColumnVector (n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3418 for (octave_idx_type i = 0; i < n; i++)
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3419 cresid(i) = Complex (rr(i),ri(i));
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3420 octave_rand::distribution (rand_dist);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3421 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3422
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3423 if (n < 3)
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3424 {
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3425 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3426 ("eigs: n must be at least 3");
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3427 return -1;
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3428 }
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3429
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3430 if (p < 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3431 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3432 p = k * 2 + 1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3433
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3434 if (p < 20)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3435 p = 20;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3436
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3437 if (p > n - 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3438 p = n - 1 ;
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3439 }
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3440
ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3441 if (k <= 0 \|\| k >= n - 1)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3442 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3443 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3444 ("eigs: Invalid number of eigenvalues to extract (must be 0 < k < n-1).\n"
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3445 " Use 'eig (full (A))' instead");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3446 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3447 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3448
9228 ab40ef1e232f fix tests within eigs-base.cc Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	3449 if (p <= k \|\| p >= n)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3450 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3451 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3452 ("eigs: opts.p must be greater than k and less than n");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3453 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3454 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3455
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3456 if (! have_sigma)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3457 {
19864 17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3458 if (typ != "LM" && typ != "SM" && typ != "LA" && typ != "SA"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3459 && typ != "BE" && typ != "LR" && typ != "SR" && typ != "LI"
17d647821d61 maint: More cleanup of C++ code to follow Octave coding conventions. John W. Eaton <jwe@octave.org> parents: 19697 diff changeset	3460 && typ != "SI")
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3461 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3462 ("eigs: unrecognized sigma value");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3463
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3464 if (typ == "LA" \|\| typ == "SA" \|\| typ == "BE")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3465 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3466 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3467 ("eigs: invalid sigma value for complex problem");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3468 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3469 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3470
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3471 if (typ == "SM")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3472 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3473 typ = "LM";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3474 sigma = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3475 mode = 3;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3476 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3477 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3478 else if (! std::abs (sigma))
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3479 typ = "SM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3480 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3481 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3482 typ = "LM";
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3483 mode = 3;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3484 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3485
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3486 Array<octave_idx_type> ip (dim_vector (11, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3487 octave_idx_type *iparam = ip.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3488
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3489 ip(0) = 1; //ishift
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3490 ip(1) = 0; // ip(1) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3491 ip(2) = maxit; // mxiter, maximum number of iterations
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3492 ip(3) = 1; // NB blocksize in recurrence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3493 ip(4) = 0; // nconv, number of Ritz values that satisfy convergence
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3494 ip(5) = 0; //ip(5) not referenced
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3495 ip(6) = mode; // mode
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3496 ip(7) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3497 ip(8) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3498 ip(9) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3499 ip(10) = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3500 // ip(7) to ip(10) return values
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3501
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3502 Array<octave_idx_type> iptr (dim_vector (14, 1));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3503 octave_idx_type *ipntr = iptr.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3504
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3505 octave_idx_type ido = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3506 int iter = 0;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3507 octave_idx_type lwork = p * (3 * p + 5);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3508
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3509 OCTAVE_LOCAL_BUFFER (Complex, v, n * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3510 OCTAVE_LOCAL_BUFFER (Complex, workl, lwork);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3511 OCTAVE_LOCAL_BUFFER (Complex, workd, 3 * n);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3512 OCTAVE_LOCAL_BUFFER (double, rwork, p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3513 Complex *presid = cresid.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3514
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3515 do
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3516 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3517 F77_FUNC (znaupd, ZNAUPD)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3518 (ido, F77_CONST_CHAR_ARG2 (&bmat, 1), n,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14711 diff changeset	3519 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3520 k, tol, presid, p, v, n, iparam,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3521 ipntr, workd, workl, lwork, rwork, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3522 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3523
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3524 if (f77_exception_encountered)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3525 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3526 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3527 ("eigs: unrecoverable exception encountered in znaupd");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3528 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3529 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3530
20955 77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines. Rik <rik@octave.org> parents: 20791 diff changeset	3531 if (disp > 0 && ! xisnan(workl[iptr(5)-1]))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3532 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3533 if (iter++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3534 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3535 os << "Iteration " << iter - 1 <<
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3536 ": a few Ritz values of the " << p << "-by-" <<
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3537 p << " matrix\n";
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3538 for (int i = 0 ; i < k; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3539 os << " " << workl[iptr(5)+i-1] << "\n";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3540 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3541
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3542 // This is a kludge, as ARPACK doesn't give its
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3543 // iteration pointer. But as workl[iptr(5)-1] is
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3544 // an output value updated at each iteration, setting
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3545 // a value in this array to NaN and testing for it
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3546 // is a way of obtaining the iteration counter.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3547 if (ido != 99)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3548 workl[iptr(5)-1] = octave_NaN;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3549 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3550
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3551 if (ido == -1 \|\| ido == 1 \|\| ido == 2)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3552 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3553 Complex *ip2 = workd + iptr(0) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3554 ComplexColumnVector x(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3555
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3556 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3557 x(i) = *ip2++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3558
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3559 ComplexColumnVector y = fun (x, err);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3560
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3561 if (err)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3562 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3563
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3564 ip2 = workd + iptr(1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3565 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3566 *ip2++ = y(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3567 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3568 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3569 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3570 if (info < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3571 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3572 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3573 ("eigs: error %d in dsaupd", info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3574 return -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3575 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3576 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3577 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3578 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3579 while (1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3580
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3581 octave_idx_type info2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3582
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3583 // We have a problem in that the size of the C++ bool
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3584 // type relative to the fortran logical type. It appears
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3585 // that fortran uses 4- or 8-bytes per logical and C++ 1-byte
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3586 // per bool, though this might be system dependent. As
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3587 // long as the HOWMNY arg is not "S", the logical array
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3588 // is just workspace for ARPACK, so use int type to
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3589 // avoid problems.
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3590 Array<octave_idx_type> s (dim_vector (p, 1));
9391 333b31ce3434 eigs-base.cc: use octave_idx_type for Fortran LOGICAL values Alexander Barth <barth.alexander@gmail.com> parents: 9228 diff changeset	3591 octave_idx_type *sel = s.fortran_vec ();
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3592
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3593 eig_vec.resize (n, k);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3594 Complex *z = eig_vec.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3595
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3596 eig_val.resize (k+1);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3597 Complex *d = eig_val.fortran_vec ();
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3598
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3599 OCTAVE_LOCAL_BUFFER (Complex, workev, 2 * p);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3600
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3601 F77_FUNC (zneupd, ZNEUPD)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3602 (rvec, F77_CONST_CHAR_ARG2 ("A", 1), sel, d, z, n, sigma, workev,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3603 F77_CONST_CHAR_ARG2 (&bmat, 1), n,
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3604 F77_CONST_CHAR_ARG2 ((typ.c_str ()), 2),
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3605 k, tol, presid, p, v, n, iparam, ipntr, workd, workl, lwork, rwork, info2
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3606 F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(1) F77_CHAR_ARG_LEN(2));
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3607
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3608 if (f77_exception_encountered)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3609 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3610 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3611 ("eigs: unrecoverable exception encountered in zneupd");
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3612 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3613 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3614
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3615 if (info2 == 0)
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3616 {
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3617 octave_idx_type k2 = k / 2;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3618 for (octave_idx_type i = 0; i < k2; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3619 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3620 Complex ctmp = d[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3621 d[i] = d[k - i - 1];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3622 d[k - i - 1] = ctmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3623 }
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	3624 eig_val.resize (k);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3625
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3626 if (rvec)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3627 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3628 OCTAVE_LOCAL_BUFFER (Complex, ctmp, n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3629
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3630 for (octave_idx_type i = 0; i < k2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3631 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3632 octave_idx_type off1 = i * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3633 octave_idx_type off2 = (k - i - 1) * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3634
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3635 if (off1 == off2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3636 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3637
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3638 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3639 ctmp[j] = z[off1 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3640
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3641 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3642 z[off1 + j] = z[off2 + j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3643
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3644 for (octave_idx_type j = 0; j < n; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3645 z[off2 + j] = ctmp[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3646 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3647 }
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3648 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3649 else
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3650 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3651 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3652 ("eigs: error %d in zneupd", info2);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3653 return -1;
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3654 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3655
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3656 return ip(4);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3657 }
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3658
20791 f7084eae3318 maint: Use Octave coding conventions for #if statements. Rik <rik@octave.org> parents: 20232 diff changeset	3659 #if ! defined (CXX_NEW_FRIEND_TEMPLATE_DECL)
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3660 extern octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3661 EigsRealSymmetricMatrix (const Matrix& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3662 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3663 octave_idx_type &info, Matrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3664 ColumnVector &eig_val, const Matrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3665 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3666 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3667 double tol = std::numeric_limits<double>::epsilon (),
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3668 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3669 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3670
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3671 extern octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3672 EigsRealSymmetricMatrix (const SparseMatrix& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3673 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3674 octave_idx_type &info, Matrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3675 ColumnVector &eig_val, const SparseMatrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3676 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3677 std::ostream& os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3678 double tol = std::numeric_limits<double>::epsilon (),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3679 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3680 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3681
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3682 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3683 EigsRealSymmetricMatrixShift (const Matrix& m, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3684 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3685 octave_idx_type &info, Matrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3686 ColumnVector &eig_val, const Matrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3687 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3688 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3689 double tol = std::numeric_limits<double>::epsilon (),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3690 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3691 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3692
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3693 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3694 EigsRealSymmetricMatrixShift (const SparseMatrix& m, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3695 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3696 octave_idx_type &info, Matrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3697 ColumnVector &eig_val, const SparseMatrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3698 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3699 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3700 double tol = std::numeric_limits<double>::epsilon (),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3701 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3702 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3703
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3704 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3705 EigsRealSymmetricFunc (EigsFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3706 const std::string &typ, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3707 octave_idx_type k, octave_idx_type p,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3708 octave_idx_type &info,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3709 Matrix &eig_vec, ColumnVector &eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3710 ColumnVector &resid, std::ostream &os,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3711 double tol = std::numeric_limits<double>::epsilon (),
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3712 bool rvec = false, bool cholB = 0, int disp = 0,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3713 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3714
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3715 extern octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3716 EigsRealNonSymmetricMatrix (const Matrix& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3717 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3718 octave_idx_type &info, ComplexMatrix &eig_vec,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3719 ComplexColumnVector &eig_val, const Matrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3720 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3721 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3722 double tol = std::numeric_limits<double>::epsilon (),
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3723 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3724 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3725
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3726 extern octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3727 EigsRealNonSymmetricMatrix (const SparseMatrix& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3728 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3729 octave_idx_type &info, ComplexMatrix &eig_vec,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3730 ComplexColumnVector &eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3731 const SparseMatrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3732 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3733 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3734 double tol = std::numeric_limits<double>::epsilon (),
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3735 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3736 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3737
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3738 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3739 EigsRealNonSymmetricMatrixShift (const Matrix& m, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3740 octave_idx_type k, octave_idx_type p,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3741 octave_idx_type &info,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3742 ComplexMatrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3743 ComplexColumnVector &eig_val, const Matrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3744 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3745 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3746 double tol = std::numeric_limits<double>::epsilon (),
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3747 bool rvec = false, bool cholB = 0,
b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3748 int disp = 0, int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3749
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3750 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3751 EigsRealNonSymmetricMatrixShift (const SparseMatrix& m, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3752 octave_idx_type k, octave_idx_type p,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3753 octave_idx_type &info,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3754 ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3755 ComplexColumnVector &eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3756 const SparseMatrix& b,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3757 ColumnVector &permB, ColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3758 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3759 double tol = std::numeric_limits<double>::epsilon (),
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3760 bool rvec = false, bool cholB = 0,
b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3761 int disp = 0, int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3762
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3763 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3764 EigsRealNonSymmetricFunc (EigsFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3765 const std::string &_typ, double sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3766 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3767 octave_idx_type &info, ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3768 ComplexColumnVector &eig_val,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3769 ColumnVector &resid, std::ostream& os,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3770 double tol = std::numeric_limits<double>::epsilon (),
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3771 bool rvec = false, bool cholB = 0, int disp = 0,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3772 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3773
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3774 extern octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3775 EigsComplexNonSymmetricMatrix (const ComplexMatrix& m, const std::string typ,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3776 octave_idx_type k, octave_idx_type p,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3777 octave_idx_type &info, ComplexMatrix &eig_vec,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3778 ComplexColumnVector &eig_val,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3779 const ComplexMatrix& b, ColumnVector &permB,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3780 ComplexColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3781 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3782 double tol = std::numeric_limits<double>::epsilon (),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3783 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3784 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3785
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3786 extern octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3787 EigsComplexNonSymmetricMatrix (const SparseComplexMatrix& m,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3788 const std::string typ, octave_idx_type k,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3789 octave_idx_type p, octave_idx_type &info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3790 ComplexMatrix &eig_vec,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3791 ComplexColumnVector &eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3792 const SparseComplexMatrix& b,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3793 ColumnVector &permB,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3794 ComplexColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3795 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3796 double tol = std::numeric_limits<double>::epsilon (),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3797 bool rvec = false, bool cholB = 0, int disp = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3798 int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3799
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3800 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3801 EigsComplexNonSymmetricMatrixShift (const ComplexMatrix& m, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3802 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3803 octave_idx_type &info,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3804 ComplexMatrix &eig_vec,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3805 ComplexColumnVector &eig_val,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3806 const ComplexMatrix& b,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3807 ColumnVector &permB,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3808 ComplexColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3809 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3810 double tol = std::numeric_limits<double>::epsilon (),
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3811 bool rvec = false, bool cholB = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3812 int disp = 0, int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3813
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3814 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3815 EigsComplexNonSymmetricMatrixShift (const SparseComplexMatrix& m,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3816 Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3817 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3818 octave_idx_type &info,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3819 ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3820 ComplexColumnVector &eig_val,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3821 const SparseComplexMatrix& b,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3822 ColumnVector &permB,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3823 ComplexColumnVector &resid,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3824 std::ostream &os,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3825 double tol = std::numeric_limits<double>::epsilon (),
10361 b4f67ca318d8 eigs-base.cc: fix prototypes for arpack functions John W. Eaton <jwe@octave.org> parents: 10350 diff changeset	3826 bool rvec = false, bool cholB = 0,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3827 int disp = 0, int maxit = 300);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3828
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3829 extern octave_idx_type
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3830 EigsComplexNonSymmetricFunc (EigsComplexFunc fun, octave_idx_type n,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3831 const std::string &_typ, Complex sigma,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3832 octave_idx_type k, octave_idx_type p,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3833 octave_idx_type &info, ComplexMatrix &eig_vec,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3834 ComplexColumnVector &eig_val,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3835 ComplexColumnVector &resid, std::ostream& os,
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3836 double tol = std::numeric_limits<double>::epsilon (),
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3837 bool rvec = false, bool cholB = 0,
61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15020 diff changeset	3838 int disp = 0, int maxit = 300);
14144 834df9f10963 remove ARPACK files from sources and restore configure checks for external ARPACK library John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	3839 #endif
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3840
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3841 #ifndef _MSC_VER
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3842 template octave_idx_type
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3843 lusolve (const SparseMatrix&, const SparseMatrix&, Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3844
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3845 template octave_idx_type
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3846 lusolve (const SparseComplexMatrix&, const SparseComplexMatrix&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3847 ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3848
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3849 template octave_idx_type
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3850 lusolve (const Matrix&, const Matrix&, Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3851
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3852 template octave_idx_type
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3853 lusolve (const ComplexMatrix&, const ComplexMatrix&, ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3854
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3855 template ComplexMatrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3856 ltsolve (const SparseComplexMatrix&, const ColumnVector&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3857 const ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3858
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3859 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3860 ltsolve (const SparseMatrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3861
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3862 template ComplexMatrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3863 ltsolve (const ComplexMatrix&, const ColumnVector&, const ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3864
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3865 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3866 ltsolve (const Matrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3867
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3868 template ComplexMatrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3869 utsolve (const SparseComplexMatrix&, const ColumnVector&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3870 const ComplexMatrix&);
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3871
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3872 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3873 utsolve (const SparseMatrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3874
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3875 template ComplexMatrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3876 utsolve (const ComplexMatrix&, const ColumnVector&, const ComplexMatrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3877
14711 f5c3de9502b2 Fix compilation error on newer compilers Alexander Hansen <alexanderk.hansen@gmail.com> parents: 14144 diff changeset	3878 template Matrix
8417 654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3879 utsolve (const Matrix&, const ColumnVector&, const Matrix&);
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3880 #endif
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3881
654bcfb937bf Add the eigs and svds functions David Bateman <dbateman@free.fr> parents: diff changeset	3882 #endif

Mercurial > octave

annotate liboctave/numeric/eigs-base.cc @ 20955:77f5591878bf