octave-lyh: liboctave/LSODE.cc annotate

annotate liboctave/LSODE.cc @ 10314:07ebe522dac2

untabify liboctave C++ sources

author	John W. Eaton <jwe@octave.org>
date	Thu, 11 Feb 2010 12:23:32 -0500
parents	4c0cdbe0acca
children	12884915a8e4

rev	line source
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	1 /*
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	2
7017 a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8807 diff changeset	4 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	5
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	6 This file is part of Octave.
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	7
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	9 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: 5765 diff changeset	10 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5765 diff changeset	11 option) any later version.
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	12
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	13 Octave is distributed in the hope that it will be useful, but WITHOUT
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	16 for more details.
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	17
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	18 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: 5765 diff changeset	19 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5765 diff changeset	20 <http://www.gnu.org/licenses/>.
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	21
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	22 */
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	23
238 780cbbc57b7c [project @ 1993-11-30 20:23:04 by jwe] jwe parents: 227 diff changeset	24 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1011 diff changeset	25 #include <config.h>
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	26 #endif
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	27
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1360 diff changeset	28 #include <cfloat>
9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1360 diff changeset	29
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5553 diff changeset	30 #include <sstream>
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5553 diff changeset	31
1842 0574a1f3a273 [project @ 1996-02-03 11:44:02 by jwe] jwe parents: 1482 diff changeset	32 #include "LSODE.h"
1847 2ffe49eb95a5 [project @ 1996-02-03 12:47:55 by jwe] jwe parents: 1842 diff changeset	33 #include "f77-fcn.h"
227 1a48a1b91489 [project @ 1993-11-15 10:10:35 by jwe] jwe parents: 3 diff changeset	34 #include "lo-error.h"
7231 2eb392d058bb [project @ 2007-11-30 18:53:29 by jwe] jwe parents: 7017 diff changeset	35 #include "lo-math.h"
4180 84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	36 #include "quit.h"
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	37
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	38 typedef octave_idx_type (lsode_fcn_ptr) (const octave_idx_type&, const double&, double,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	39 double*, octave_idx_type&);
3507 00fdd363c098 [project @ 2000-02-01 21:31:44 by jwe] jwe parents: 3504 diff changeset	40
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	41 typedef octave_idx_type (lsode_jac_ptr) (const octave_idx_type&, const double&, double,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	42 const octave_idx_type&, const octave_idx_type&, double*, const
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	43 octave_idx_type&);
3507 00fdd363c098 [project @ 2000-02-01 21:31:44 by jwe] jwe parents: 3504 diff changeset	44
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	45 extern "C"
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4231 diff changeset	46 {
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4231 diff changeset	47 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	48 F77_FUNC (dlsode, DLSODE) (lsode_fcn_ptr, octave_idx_type&, double*, double&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	49 double&, octave_idx_type&, double&, const double*, octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	50 octave_idx_type&, octave_idx_type&, double, octave_idx_type&, octave_idx_type, octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	51 lsode_jac_ptr, octave_idx_type&);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4231 diff changeset	52 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	53
532 2ca256b77602 [project @ 1994-07-20 19:56:55 by jwe] jwe parents: 461 diff changeset	54 static ODEFunc::ODERHSFunc user_fun;
2ca256b77602 [project @ 1994-07-20 19:56:55 by jwe] jwe parents: 461 diff changeset	55 static ODEFunc::ODEJacFunc user_jac;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	56 static ColumnVector *tmp_x;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	57
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	58 static octave_idx_type
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	59 lsode_f (const octave_idx_type& neq, const double& time, double *,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	60 double *deriv, octave_idx_type& ierr)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	61 {
4180 84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	62 BEGIN_INTERRUPT_WITH_EXCEPTIONS;
84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	63
2343 d7592de300ea [project @ 1996-07-24 21:42:44 by jwe] jwe parents: 1993 diff changeset	64 ColumnVector tmp_deriv;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	65
1360 7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	66 // NOTE: this won't work if LSODE passes copies of the state vector.
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	67 // In that case we have to create a temporary vector object
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	68 // and copy.
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	69
1251 97eac19837dc [project @ 1995-04-11 15:58:32 by jwe] jwe parents: 1192 diff changeset	70 tmp_deriv = (user_fun) (tmp_x, time);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	71
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	72 if (tmp_deriv.length () == 0)
1251 97eac19837dc [project @ 1995-04-11 15:58:32 by jwe] jwe parents: 1192 diff changeset	73 ierr = -1;
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	74 else
1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	75 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	76 for (octave_idx_type i = 0; i < neq; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	77 deriv [i] = tmp_deriv.elem (i);
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	78 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	79
4180 84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	80 END_INTERRUPT_WITH_EXCEPTIONS;
84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	81
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	82 return 0;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	83 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	84
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	85 static octave_idx_type
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	86 lsode_j (const octave_idx_type& neq, const double& time, double *,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	87 const octave_idx_type&, const octave_idx_type&, double *pd, const octave_idx_type& nrowpd)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	88 {
4180 84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	89 BEGIN_INTERRUPT_WITH_EXCEPTIONS;
84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	90
1251 97eac19837dc [project @ 1995-04-11 15:58:32 by jwe] jwe parents: 1192 diff changeset	91 Matrix tmp_jac (neq, neq);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	92
1360 7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	93 // NOTE: this won't work if LSODE passes copies of the state vector.
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	94 // In that case we have to create a temporary vector object
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	95 // and copy.
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	96
1251 97eac19837dc [project @ 1995-04-11 15:58:32 by jwe] jwe parents: 1192 diff changeset	97 tmp_jac = (user_jac) (tmp_x, time);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	98
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	99 for (octave_idx_type j = 0; j < neq; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	100 for (octave_idx_type i = 0; i < neq; i++)
1251 97eac19837dc [project @ 1995-04-11 15:58:32 by jwe] jwe parents: 1192 diff changeset	101 pd [nrowpd * j + i] = tmp_jac (i, j);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	102
4180 84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	103 END_INTERRUPT_WITH_EXCEPTIONS;
84fe3ca3a246 [project @ 2002-11-15 04:47:01 by jwe] jwe parents: 4066 diff changeset	104
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	105 return 0;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	106 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	107
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	108 ColumnVector
1842 0574a1f3a273 [project @ 1996-02-03 11:44:02 by jwe] jwe parents: 1482 diff changeset	109 LSODE::do_integrate (double tout)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	110 {
1945 8c4bce5e773e [project @ 1996-02-14 01:03:03 by jwe] jwe parents: 1882 diff changeset	111 ColumnVector retval;
8c4bce5e773e [project @ 1996-02-14 01:03:03 by jwe] jwe parents: 1882 diff changeset	112
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	113 static octave_idx_type nn = 0;
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	114
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	115 if (! initialized \|\| restart \|\| ODEFunc::reset \|\| LSODE_options::reset)
1945 8c4bce5e773e [project @ 1996-02-14 01:03:03 by jwe] jwe parents: 1882 diff changeset	116 {
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	117 integration_error = false;
1945 8c4bce5e773e [project @ 1996-02-14 01:03:03 by jwe] jwe parents: 1882 diff changeset	118
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	119 initialized = true;
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	120
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	121 istate = 1;
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	122
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	123 octave_idx_type n = size ();
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	124
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	125 nn = n;
3955 dc970f5941ee [project @ 2002-05-23 20:28:56 by jwe] jwe parents: 3954 diff changeset	126
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	127 octave_idx_type max_maxord = 0;
4231 1032fb9ec0d1 [project @ 2002-12-19 19:58:29 by jwe] jwe parents: 4192 diff changeset	128
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	129 if (integration_method () == "stiff")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	130 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	131 max_maxord = 5;
4231 1032fb9ec0d1 [project @ 2002-12-19 19:58:29 by jwe] jwe parents: 4192 diff changeset	132
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	133 if (jac)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	134 method_flag = 21;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	135 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	136 method_flag = 22;
3955 dc970f5941ee [project @ 2002-05-23 20:28:56 by jwe] jwe parents: 3954 diff changeset	137
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	138 liw = 20 + n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	139 lrw = 22 + n * (9 + n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	140 }
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	141 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	142 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	143 max_maxord = 12;
4231 1032fb9ec0d1 [project @ 2002-12-19 19:58:29 by jwe] jwe parents: 4192 diff changeset	144
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	145 method_flag = 10;
3955 dc970f5941ee [project @ 2002-05-23 20:28:56 by jwe] jwe parents: 3954 diff changeset	146
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	147 liw = 20;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	148 lrw = 22 + 16 * n;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	149 }
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	150
4231 1032fb9ec0d1 [project @ 2002-12-19 19:58:29 by jwe] jwe parents: 4192 diff changeset	151 maxord = maximum_order ();
1032fb9ec0d1 [project @ 2002-12-19 19:58:29 by jwe] jwe parents: 4192 diff changeset	152
5552 bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	153 iwork.resize (liw);
bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	154
bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	155 for (octave_idx_type i = 4; i < 9; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	156 iwork(i) = 0;
5552 bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	157
bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	158 rwork.resize (lrw);
bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	159
bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	160 for (octave_idx_type i = 4; i < 9; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	161 rwork(i) = 0;
5552 bcc328604953 [project @ 2005-11-30 05:48:59 by jwe] jwe parents: 5307 diff changeset	162
4231 1032fb9ec0d1 [project @ 2002-12-19 19:58:29 by jwe] jwe parents: 4192 diff changeset	163 if (maxord >= 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	164 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	165 if (maxord > 0 && maxord <= max_maxord)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	166 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	167 iwork(4) = maxord;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	168 iopt = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	169 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	170 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	171 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	172 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	173 ("lsode: invalid value for maximum order");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	174 integration_error = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	175 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	176 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	177 }
4231 1032fb9ec0d1 [project @ 2002-12-19 19:58:29 by jwe] jwe parents: 4192 diff changeset	178
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	179 if (stop_time_set)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	180 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	181 itask = 4;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	182 rwork(0) = stop_time;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	183 iopt = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	184 }
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	185 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	186 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	187 itask = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	188 }
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	189
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	190 px = x.fortran_vec ();
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	191
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	192 piwork = iwork.fortran_vec ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	193 prwork = rwork.fortran_vec ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	194
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	195 restart = false;
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	196
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	197 // ODEFunc
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	198
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	199 // NOTE: this won't work if LSODE passes copies of the state vector.
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	200 // In that case we have to create a temporary vector object
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	201 // and copy.
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	202
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	203 tmp_x = &x;
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	204
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	205 user_fun = function ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	206 user_jac = jacobian_function ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	207
2343 d7592de300ea [project @ 1996-07-24 21:42:44 by jwe] jwe parents: 1993 diff changeset	208 ColumnVector xdot = (*user_fun) (x, t);
d7592de300ea [project @ 1996-07-24 21:42:44 by jwe] jwe parents: 1993 diff changeset	209
d7592de300ea [project @ 1996-07-24 21:42:44 by jwe] jwe parents: 1993 diff changeset	210 if (x.length () != xdot.length ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	211 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	212 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	213 ("lsode: inconsistent sizes for state and derivative vectors");
2343 d7592de300ea [project @ 1996-07-24 21:42:44 by jwe] jwe parents: 1993 diff changeset	214
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	215 integration_error = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	216 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	217 }
2343 d7592de300ea [project @ 1996-07-24 21:42:44 by jwe] jwe parents: 1993 diff changeset	218
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	219 ODEFunc::reset = false;
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	220
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	221 // LSODE_options
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	222
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	223 rel_tol = relative_tolerance ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	224 abs_tol = absolute_tolerance ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	225
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	226 octave_idx_type abs_tol_len = abs_tol.length ();
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	227
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	228 if (abs_tol_len == 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	229 itol = 1;
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	230 else if (abs_tol_len == n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	231 itol = 2;
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	232 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	233 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	234 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	235 ("lsode: inconsistent sizes for state and absolute tolerance vectors");
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	236
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	237 integration_error = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	238 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	239 }
2343 d7592de300ea [project @ 1996-07-24 21:42:44 by jwe] jwe parents: 1993 diff changeset	240
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	241 double iss = initial_step_size ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	242 if (iss >= 0.0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	243 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	244 rwork(4) = iss;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	245 iopt = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	246 }
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	247
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	248 double maxss = maximum_step_size ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	249 if (maxss >= 0.0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	250 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	251 rwork(5) = maxss;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	252 iopt = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	253 }
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	254
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	255 double minss = minimum_step_size ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	256 if (minss >= 0.0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	257 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	258 rwork(6) = minss;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	259 iopt = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	260 }
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	261
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	262 octave_idx_type sl = step_limit ();
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	263 if (sl > 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	264 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	265 iwork(5) = sl;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	266 iopt = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	267 }
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	268
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	269 pabs_tol = abs_tol.fortran_vec ();
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	270
a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	271 LSODE_options::reset = false;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	272 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	273
4583 70da2b8c91dd [project @ 2003-10-31 15:18:31 by jwe] jwe parents: 4552 diff changeset	274 F77_XFCN (dlsode, DLSODE, (lsode_f, nn, px, t, tout, itol, rel_tol,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	275 pabs_tol, itask, istate, iopt, prwork, lrw,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	276 piwork, liw, lsode_j, method_flag));
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	277
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	278 switch (istate)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	279 {
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	280 case 1: // prior to initial integration step.
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	281 case 2: // lsode was successful.
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	282 retval = x;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	283 t = tout;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	284 break;
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	285
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	286 case -1: // excess work done on this call (perhaps wrong mf).
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	287 case -2: // excess accuracy requested (tolerances too small).
8807 401d54a83690 use 'invalid', not 'illegal' John W. Eaton <jwe@octave.org> parents: 7482 diff changeset	288 case -3: // invalid input detected (see printed message).
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	289 case -4: // repeated error test failures (check all inputs).
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	290 case -5: // repeated convergence failures (perhaps bad jacobian
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	291 // supplied or wrong choice of mf or tolerances).
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	292 case -6: // error weight became zero during problem. (solution
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	293 // component i vanished, and atol or atol(i) = 0.)
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	294 case -13: // return requested in user-supplied function.
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	295 integration_error = true;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	296 break;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	297
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	298 default:
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	299 integration_error = true;
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	300 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	301 ("unrecognized value of istate (= %d) returned from lsode",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	302 istate);
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	303 break;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	304 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	305
1945 8c4bce5e773e [project @ 1996-02-14 01:03:03 by jwe] jwe parents: 1882 diff changeset	306 return retval;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	307 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	308
3959 5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	309 std::string
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	310 LSODE::error_message (void) const
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	311 {
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	312 std::string retval;
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	313
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5553 diff changeset	314 std::ostringstream buf;
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5553 diff changeset	315 buf << t;
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5553 diff changeset	316 std::string t_curr = buf.str ();
4042 8bc97120fbd5 [project @ 2002-08-15 02:30:40 by jwe] jwe parents: 3998 diff changeset	317
3959 5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	318 switch (istate)
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	319 {
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	320 case 1:
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	321 retval = "prior to initial integration step";
3959 5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	322 break;
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	323
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	324 case 2:
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	325 retval = "successful exit";
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	326 break;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	327
3959 5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	328 case 3:
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	329 retval = "prior to continuation call with modified parameters";
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	330 break;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	331
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	332 case -1:
4042 8bc97120fbd5 [project @ 2002-08-15 02:30:40 by jwe] jwe parents: 3998 diff changeset	333 retval = std::string ("excess work on this call (t = ")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	334 + t_curr + "; perhaps wrong integration method)";
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	335 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	336
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	337 case -2:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	338 retval = "excess accuracy requested (tolerances too small)";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	339 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	340
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	341 case -3:
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	342 retval = "invalid input detected (see printed message)";
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	343 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	344
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	345 case -4:
4042 8bc97120fbd5 [project @ 2002-08-15 02:30:40 by jwe] jwe parents: 3998 diff changeset	346 retval = std::string ("repeated error test failures (t = ")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	347 + t_curr + "check all inputs)";
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	348 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	349
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	350 case -5:
4042 8bc97120fbd5 [project @ 2002-08-15 02:30:40 by jwe] jwe parents: 3998 diff changeset	351 retval = std::string ("repeated convergence failures (t = ")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	352 + t_curr
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	353 + "perhaps bad jacobian supplied or wrong choice of integration method or tolerances)";
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	354 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	355
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	356 case -6:
4042 8bc97120fbd5 [project @ 2002-08-15 02:30:40 by jwe] jwe parents: 3998 diff changeset	357 retval = std::string ("error weight became zero during problem. (t = ")
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	358 + t_curr
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	359 + "; solution component i vanished, and atol or atol(i) == 0)";
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	360 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	361
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	362 case -13:
4042 8bc97120fbd5 [project @ 2002-08-15 02:30:40 by jwe] jwe parents: 3998 diff changeset	363 retval = "return requested in user-supplied function (t = "
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	364 + t_curr + ")";
3996 98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	365 break;
98107d72871c [project @ 2002-07-17 16:22:05 by jwe] jwe parents: 3995 diff changeset	366
3959 5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	367 default:
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	368 retval = "unknown error state";
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	369 break;
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	370 }
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	371
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	372 return retval;
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	373 }
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3955 diff changeset	374
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	375 Matrix
1842 0574a1f3a273 [project @ 1996-02-03 11:44:02 by jwe] jwe parents: 1482 diff changeset	376 LSODE::do_integrate (const ColumnVector& tout)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	377 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	378 Matrix retval;
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	379
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	380 octave_idx_type n_out = tout.capacity ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	381 octave_idx_type n = size ();
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	382
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	383 if (n_out > 0 && n > 0)
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	384 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	385 retval.resize (n_out, n);
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	386
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	387 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	388 retval.elem (0, i) = x.elem (i);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	389
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	390 for (octave_idx_type j = 1; j < n_out; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	391 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	392 ColumnVector x_next = do_integrate (tout.elem (j));
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	393
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	394 if (integration_error)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	395 return retval;
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	396
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	397 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	398 retval.elem (j, i) = x_next.elem (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	399 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	400 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	401
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	402 return retval;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	403 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	404
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	405 Matrix
3511 d92134062783 [project @ 2000-02-01 22:06:28 by jwe] jwe parents: 3507 diff changeset	406 LSODE::do_integrate (const ColumnVector& tout, const ColumnVector& tcrit)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	407 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	408 Matrix retval;
4049 a35a3c5d4740 [project @ 2002-08-16 08:54:31 by jwe] jwe parents: 4043 diff changeset	409
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	410 octave_idx_type n_out = tout.capacity ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	411 octave_idx_type n = size ();
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	412
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	413 if (n_out > 0 && n > 0)
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	414 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	415 retval.resize (n_out, n);
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	416
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	417 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	418 retval.elem (0, i) = x.elem (i);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	419
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	420 octave_idx_type n_crit = tcrit.capacity ();
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	421
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	422 if (n_crit > 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	423 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	424 octave_idx_type i_crit = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	425 octave_idx_type i_out = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	426 double next_crit = tcrit.elem (0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	427 double next_out;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	428 while (i_out < n_out)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	429 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	430 bool do_restart = false;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	431
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	432 next_out = tout.elem (i_out);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	433 if (i_crit < n_crit)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	434 next_crit = tcrit.elem (i_crit);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	435
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	436 octave_idx_type save_output;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	437 double t_out;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	438
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	439 if (next_crit == next_out)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	440 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	441 set_stop_time (next_crit);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	442 t_out = next_out;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	443 save_output = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	444 i_out++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	445 i_crit++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	446 do_restart = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	447 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	448 else if (next_crit < next_out)
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 if (i_crit < n_crit)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	451 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	452 set_stop_time (next_crit);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	453 t_out = next_crit;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	454 save_output = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	455 i_crit++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	456 do_restart = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	457 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	458 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	459 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	460 clear_stop_time ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	461 t_out = next_out;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	462 save_output = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	463 i_out++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	464 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	465 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	466 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	467 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	468 set_stop_time (next_crit);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	469 t_out = next_out;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	470 save_output = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	471 i_out++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	472 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	473
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	474 ColumnVector x_next = do_integrate (t_out);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	475
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	476 if (integration_error)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	477 return retval;
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	478
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	479 if (save_output)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	480 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	481 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	482 retval.elem (i_out-1, i) = x_next.elem (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	483 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	484
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	485 if (do_restart)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	486 force_restart ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	487 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	488 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	489 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	490 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	491 retval = do_integrate (tout);
258 1c9a678906fb [project @ 1993-12-14 06:24:04 by jwe] jwe parents: 238 diff changeset	492
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	493 if (integration_error)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	494 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	495 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	496 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	497
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	498 return retval;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	499 }

Mercurial > hg > octave-lyh

annotate liboctave/LSODE.cc @ 10314:07ebe522dac2