octave-lyh: src/DLD-FUNCTIONS/luinc.cc annotate

annotate src/DLD-FUNCTIONS/luinc.cc @ 10840:89f4d7e294cc

Grammarcheck .cc files

author	Rik <octave@nomad.inbox5.com>
date	Sat, 31 Jul 2010 11:18:11 -0700
parents	fbd7843974fa
children	b0a9450d81c6

rev	line source
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	1 /*
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	2
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8286 diff changeset	3 Copyright (C) 2005, 2006, 2007, 2008 David Bateman
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	4
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	5 This file is part of Octave.
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	6
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	8 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	10 option) any later version.
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	11
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	15 for more details.
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	16
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	17 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	19 <http://www.gnu.org/licenses/>.
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	20
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	21 */
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	22
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	23 #ifdef HAVE_CONFIG_H
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	24 #include <config.h>
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	25 #endif
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	26
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	27 #include "defun-dld.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	28 #include "error.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	29 #include "gripes.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	30 #include "oct-obj.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	31 #include "utils.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	32 #include "oct-map.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	33
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	34 #include "MatrixType.h"
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	35 #include "SparseCmplxLU.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	36 #include "SparsedbleLU.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	37 #include "ov-re-sparse.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	38 #include "ov-cx-sparse.h"
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	39
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	40 DEFUN_DLD (luinc, args, nargout,
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	41 "-- texinfo --\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10711 diff changeset	42 @deftypefn {Loadable Function} {[@var{l}, @var{u}, @var{p}, @var{q}] =} luinc (@var{a}, '0')\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	43 @deftypefnx {Loadable Function} {[@var{l}, @var{u}, @var{p}, @var{q}] =} luinc (@var{a}, @var{droptol})\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	44 @deftypefnx {Loadable Function} {[@var{l}, @var{u}, @var{p}, @var{q}] =} luinc (@var{a}, @var{opts})\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	45 @cindex LU decomposition\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	46 Produce the incomplete LU factorization of the sparse matrix @var{a}.\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	47 Two types of incomplete factorization are possible, and the type\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	48 is determined by the second argument to @dfn{luinc}.\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	49 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	50 Called with a second argument of '0', the zero-level incomplete\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	51 LU factorization is produced. This creates a factorization of @var{a}\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	52 where the position of the non-zero arguments correspond to the same\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	53 positions as in the matrix @var{a}.\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	54 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	55 Alternatively, the fill-in of the incomplete LU factorization can\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	56 be controlled through the variable @var{droptol} or the structure\n\
10711 fbd7843974fa Periodic grammar check of documentation files to ensure common format. Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	57 @var{opts}. The @sc{umfpack} multifrontal factorization code by Tim A.\n\
7001 8b0cfeb06365 [project @ 2007-10-10 18:02:59 by jwe] jwe parents: 6027 diff changeset	58 Davis is used for the incomplete LU factorization, (availability\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	59 @url{http://www.cise.ufl.edu/research/sparse/umfpack/})\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	60 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	61 @var{droptol} determines the values below which the values in the LU\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	62 factorization are dropped and replaced by zero. It must be a positive\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	63 scalar, and any values in the factorization whose absolute value are\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	64 less than this value are dropped, expect if leaving them increase the\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	65 sparsity of the matrix. Setting @var{droptol} to zero results in a\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	66 complete LU factorization which is the default.\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	67 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	68 @var{opts} is a structure containing one or more of the fields\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	69 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	70 @table @code\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	71 @item droptol\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	72 The drop tolerance as above. If @var{opts} only contains @code{droptol}\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	73 then this is equivalent to using the variable @var{droptol}.\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	74 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	75 @item milu\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	76 A logical variable flagging whether to use the modified incomplete LU\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	77 factorization. In the case that @code{milu} is true, the dropped values\n\
7001 8b0cfeb06365 [project @ 2007-10-10 18:02:59 by jwe] jwe parents: 6027 diff changeset	78 are subtracted from the diagonal of the matrix U of the factorization.\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	79 The default is @code{false}.\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	80 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	81 @item udiag\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	82 A logical variable that flags whether zero elements on the diagonal of U\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	83 should be replaced with @var{droptol} to attempt to avoid singular\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	84 factors. The default is @code{false}.\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	85 \n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	86 @item thresh\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	87 Defines the pivot threshold in the interval [0,1]. Values outside that\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	88 range are ignored.\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	89 @end table\n\
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	90 \n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	91 All other fields in @var{opts} are ignored. The outputs from @dfn{luinc}\n\
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	92 are the same as for @dfn{lu}.\n\
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	93 \n\
f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	94 Given the string argument 'vector', @dfn{luinc} returns the values of @var{p}\n\
f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	95 @var{q} as vector values.\n\
8286 6f2d95255911 fix @seealso references to point to existing anchors Thorsten Meyer <thorsten.meyier@gmx.de> parents: 7515 diff changeset	96 @seealso{sparse, lu}\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5610 diff changeset	97 @end deftypefn")
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	98 {
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	99 int nargin = args.length ();
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	100 octave_value_list retval;
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	101
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	102 if (nargin == 0)
5823 080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe] jwe parents: 5785 diff changeset	103 print_usage ();
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	104 else if (nargin < 2 \|\| nargin > 3)
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	105 error ("luinc: incorrect number of arguments");
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	106 else
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	107 {
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	108 bool zero_level = false;
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	109 bool milu = false;
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	110 bool udiag = false;
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	111 Matrix thresh;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	112 double droptol = -1.;
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	113 bool vecout;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	114
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	115 if (args(1).is_string ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	116 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	117 if (args(1).string_value () == "0")
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	118 zero_level = true;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	119 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	120 error ("luinc: unrecognized string argument");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	121 }
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	122 else if (args(1).is_map ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	123 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	124 Octave_map map = args(1).map_value ();
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	125
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	126 if (map.contains ("droptol"))
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	127 droptol = map.contents ("droptol")(0).double_value ();
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	128
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	129 if (map.contains ("milu"))
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	130 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	131 double tmp = map.contents ("milu")(0).double_value ();
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	132
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	133 milu = (tmp == 0. ? false : true);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	134 }
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	135
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	136 if (map.contains ("udiag"))
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	137 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	138 double tmp = map.contents ("udiag")(0).double_value ();
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	139
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	140 udiag = (tmp == 0. ? false : true);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	141 }
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	142
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	143 if (map.contains ("thresh"))
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	144 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	145 thresh = map.contents ("thresh")(0).matrix_value ();
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	146
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	147 if (thresh.nelem () == 1)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	148 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	149 thresh.resize(1,2);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	150 thresh(1) = thresh(0);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	151 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	152 else if (thresh.nelem () != 2)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	153 error ("chol: expecting 2 element vector for thresh");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	154 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	155 }
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	156 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	157 droptol = args(1).double_value ();
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	158
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	159 if (nargin == 3)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	160 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	161 std::string tmp = args(2).string_value ();
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	162
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	163 if (! error_state )
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	164 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	165 if (tmp.compare ("vector") == 0)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	166 vecout = true;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	167 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	168 error ("luinc: unrecognized string argument");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	169 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	170 }
7515 f3c00dc0912b Eliminate the rest of the dispatched sparse functions David Bateman <dbateman@free.fr> parents: 7243 diff changeset	171
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5681 diff changeset	172 // FIXME Add code for zero-level factorization
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	173 if (zero_level)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	174 error ("luinc: zero-level factorization not implemented");
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	175
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	176 if (!error_state)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	177 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	178 if (args(0).type_name () == "sparse matrix")
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	179 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	180 SparseMatrix sm = args(0).sparse_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	181 octave_idx_type sm_nr = sm.rows ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	182 octave_idx_type sm_nc = sm.cols ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	183 ColumnVector Qinit (sm_nc);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	184
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	185 for (octave_idx_type i = 0; i < sm_nc; i++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	186 Qinit (i) = i;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	187
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	188 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	189 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	190 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	191 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	192 case 0:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	193 case 1:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	194 case 2:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	195 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	196 SparseLU fact (sm, Qinit, thresh, false, true, droptol,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	197 milu, udiag);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	198
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	199 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	200 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	201 SparseMatrix P = fact.Pr ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	202 SparseMatrix L = P.transpose () * fact.L ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	203 retval(1) = octave_value (fact.U (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	204 MatrixType (MatrixType::Upper));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	205 retval(0) = octave_value (L, MatrixType
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	206 (MatrixType::Permuted_Lower,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	207 sm_nr, fact.row_perm ()));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	208 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	209 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	210 break;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	211
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	212 case 3:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	213 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	214 SparseLU fact (sm, Qinit, thresh, false, true, droptol,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	215 milu, udiag);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	216
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	217 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	218 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	219 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	220 retval(2) = fact.Pr_vec ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	221 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	222 retval(2) = fact.Pr ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	223 retval(1) = octave_value (fact.U (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	224 MatrixType (MatrixType::Upper));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	225 retval(0) = octave_value (fact.L (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	226 MatrixType (MatrixType::Lower));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	227 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	228 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	229 break;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	230
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	231 case 4:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	232 default:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	233 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	234 SparseLU fact (sm, Qinit, thresh, false, false, droptol,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	235 milu, udiag);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	236
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	237 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	238 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	239 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	240 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	241 retval(3) = fact.Pc_vec ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	242 retval(2) = fact.Pr_vec ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	243 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	244 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	245 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	246 retval(3) = fact.Pc ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	247 retval(2) = fact.Pr ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	248 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	249 retval(1) = octave_value (fact.U (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	250 MatrixType (MatrixType::Upper));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	251 retval(0) = octave_value (fact.L (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	252 MatrixType (MatrixType::Lower));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	253 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	254 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	255 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	256 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	257 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	258 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	259 else if (args(0).type_name () == "sparse complex matrix")
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	260 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	261 SparseComplexMatrix sm =
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	262 args(0).sparse_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	263 octave_idx_type sm_nr = sm.rows ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	264 octave_idx_type sm_nc = sm.cols ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	265 ColumnVector Qinit (sm_nc);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	266
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	267 for (octave_idx_type i = 0; i < sm_nc; i++)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	268 Qinit (i) = i;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	269
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	270 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	271 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	272 switch (nargout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	273 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	274 case 0:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	275 case 1:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	276 case 2:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	277 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	278 SparseComplexLU fact (sm, Qinit, thresh, false, true,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	279 droptol, milu, udiag);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	280
6027 068e52f1c005 [project @ 2006-10-03 20:07:56 by jwe] jwe parents: 5823 diff changeset	281
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	282 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	283 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	284 SparseMatrix P = fact.Pr ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	285 SparseComplexMatrix L = P.transpose () * fact.L ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	286 retval(1) = octave_value (fact.U (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	287 MatrixType (MatrixType::Upper));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	288 retval(0) = octave_value (L, MatrixType
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	289 (MatrixType::Permuted_Lower,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	290 sm_nr, fact.row_perm ()));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	291 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	292 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	293 break;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	294
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	295 case 3:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	296 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	297 SparseComplexLU fact (sm, Qinit, thresh, false, true,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	298 droptol, milu, udiag);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	299
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	300 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	301 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	302 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	303 retval(2) = fact.Pr_vec ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	304 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	305 retval(2) = fact.Pr ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	306 retval(1) = octave_value (fact.U (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	307 MatrixType (MatrixType::Upper));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	308 retval(0) = octave_value (fact.L (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	309 MatrixType (MatrixType::Lower));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	310 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	311 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	312 break;
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	313
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	314 case 4:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	315 default:
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	316 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	317 SparseComplexLU fact (sm, Qinit, thresh, false, false,
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	318 droptol, milu, udiag);
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	319
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	320 if (! error_state)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	321 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	322 if (vecout)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	323 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	324 retval(3) = fact.Pc_vec ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	325 retval(2) = fact.Pr_vec ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	326 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	327 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	328 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	329 retval(3) = fact.Pc ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	330 retval(2) = fact.Pr ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	331 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	332 retval(1) = octave_value (fact.U (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	333 MatrixType (MatrixType::Upper));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	334 retval(0) = octave_value (fact.L (),
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	335 MatrixType (MatrixType::Lower));
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	336 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	337 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	338 break;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	339 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	340 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	341 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	342 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	343 error ("luinc: first argument must be sparse");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9064 diff changeset	344 }
5282 5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	345 }
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	346
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	347 return retval;
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	348 }
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	349
5bdc3f24cd5f [project @ 2005-04-14 22:17:26 by dbateman] dbateman parents: diff changeset	350 /*
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	351
7243 e8d7eed42935 [project @ 2007-12-04 02:10:17 by jwe] jwe parents: 7017 diff changeset	352 %!testif HAVE_UMFPACK
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	353 %! a=sparse([1,2,0,0;0,1,2,0;1e-14,0,3,0;0,0,0,1]);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	354 %! [l,u]=luinc(a,1e-10);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	355 %! assert(l*u, sparse([1,2,0,0;0,1,2,0;0,0,3,0;0,0,0,1]),1e-10);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	356 %! opts.droptol=1e-10;
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	357 %! [l,u]=luinc(a,opts);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	358 %! assert(l*u, sparse([1,2,0,0;0,1,2,0;0,0,3,0;0,0,0,1]),1e-10);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	359
7243 e8d7eed42935 [project @ 2007-12-04 02:10:17 by jwe] jwe parents: 7017 diff changeset	360 %!testif HAVE_UMFPACK
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	361 %! a=sparse([1i,2,0,0;0,1,2,0;1e-14,0,3,0;0,0,0,1]);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	362 %! [l,u]=luinc(a,1e-10);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	363 %! assert(l*u, sparse([1i,2,0,0;0,1,2,0;0,0,3,0;0,0,0,1]),1e-10);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	364 %! opts.droptol=1e-10;
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	365 %! [l,u]=luinc(a,opts);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	366 %! assert(l*u, sparse([1i,2,0,0;0,1,2,0;0,0,3,0;0,0,0,1]),1e-10);
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	367
9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5322 diff changeset	368 */

Mercurial > hg > octave-lyh

annotate src/DLD-FUNCTIONS/luinc.cc @ 10840:89f4d7e294cc