annotate libinterp/corefcn/lsode.cc @ 20587:f90c8372b7ba

eliminate many more simple uses of error_state * Cell.cc, __ichol__.cc, __ilu__.cc, balance.cc, bsxfun.cc, colloc.cc, det.cc, dlmread.cc, dynamic-ld.cc, eig.cc, fft.cc, fft2.cc, fftn.cc, gcd.cc, getgrent.cc, getpwent.cc, givens.cc, hess.cc, input.cc, levenshtein.cc, load-path.cc, lookup.cc, ls-mat-ascii.cc, ls-mat4.cc, lsode.cc, lu.cc, max.cc, md5sum.cc, mex.cc, pager.cc, pinv.cc, pr-output.cc, qz.cc, schur.cc, sparse.cc, sqrtm.cc, str2double.cc, strfns.cc, sub2ind.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, __init_gnuplot__.cc, __magick_read__.cc, __osmesa_print__.cc, amd.cc, audiodevinfo.cc, dmperm.cc, fftw.cc, symrcm.cc, ov-base-diag.cc, ov-base-sparse.cc, ov-base.cc, ov-bool-sparse.cc, ov-builtin.cc, ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc, ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-lazy-idx.cc, ov-mex-fcn.cc, ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, op-bm-b.cc, op-bm-bm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-str-m.cc, op-str-s.cc, oct-parse.in.yy, pt-cbinop.cc, pt-colon.cc, pt-decl.cc, pt-exp.cc, pt-id.cc, pt-misc.cc, pt-select.cc, pt-unop.cc: Eliminate simple uses of error_state.
author John W. Eaton <jwe@octave.org>
date Mon, 05 Oct 2015 19:29:36 -0400
parents 7ac907da9fba
children
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1 /*
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2
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4197fc428c7d maint: Update copyright notices for 2015.
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3 Copyright (C) 1996-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include <string>
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28
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29 #include <iomanip>
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30 #include <iostream>
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31
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32 #include "LSODE.h"
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33 #include "lo-mappers.h"
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34
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35 #include "defun.h"
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36 #include "error.h"
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37 #include "gripes.h"
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38 #include "oct-obj.h"
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39 #include "ov-fcn.h"
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40 #include "ov-cell.h"
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41 #include "pager.h"
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42 #include "pr-output.h"
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43 #include "unwind-prot.h"
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44 #include "utils.h"
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45 #include "variables.h"
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46
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47 #include "LSODE-opts.cc"
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48
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49 // Global pointer for user defined function required by lsode.
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50 static octave_function *lsode_fcn;
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51
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52 // Global pointer for optional user defined jacobian function used by lsode.
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53 static octave_function *lsode_jac;
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54
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55 // Have we warned about imaginary values returned from user function?
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56 static bool warned_fcn_imaginary = false;
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57 static bool warned_jac_imaginary = false;
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58
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59 // Is this a recursive call?
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60 static int call_depth = 0;
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61
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62 ColumnVector
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63 lsode_user_function (const ColumnVector& x, double t)
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64 {
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65 ColumnVector retval;
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66
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67 octave_value_list args;
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68 args(1) = t;
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69 args(0) = x;
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70
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71 if (lsode_fcn)
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72 {
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73 octave_value_list tmp = lsode_fcn->do_multi_index_op (1, args);
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74
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75 if (error_state)
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76 {
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77 gripe_user_supplied_eval ("lsode");
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78 return retval;
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79 }
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80
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81 if (tmp.length () > 0 && tmp(0).is_defined ())
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82 {
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83 if (! warned_fcn_imaginary && tmp(0).is_complex_type ())
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84 {
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85 warning ("lsode: ignoring imaginary part returned from user-supplied function");
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86 warned_fcn_imaginary = true;
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87 }
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88
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89 retval = ColumnVector (tmp(0).vector_value ());
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90
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91 if (error_state || retval.numel () == 0)
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92 gripe_user_supplied_eval ("lsode");
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93 }
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94 else
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95 gripe_user_supplied_eval ("lsode");
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96 }
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97
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98 return retval;
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99 }
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100
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101 Matrix
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102 lsode_user_jacobian (const ColumnVector& x, double t)
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103 {
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104 Matrix retval;
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105
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106 octave_value_list args;
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107 args(1) = t;
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108 args(0) = x;
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109
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110 if (lsode_jac)
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111 {
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112 octave_value_list tmp = lsode_jac->do_multi_index_op (1, args);
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113
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114 if (error_state)
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115 {
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116 gripe_user_supplied_eval ("lsode");
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117 return retval;
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118 }
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119
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120 if (tmp.length () > 0 && tmp(0).is_defined ())
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121 {
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122 if (! warned_jac_imaginary && tmp(0).is_complex_type ())
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123 {
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124 warning ("lsode: ignoring imaginary part returned from user-supplied jacobian function");
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125 warned_jac_imaginary = true;
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126 }
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127
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128 retval = tmp(0).matrix_value ();
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129
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130 if (error_state || retval.numel () == 0)
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131 gripe_user_supplied_eval ("lsode");
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132 }
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133 else
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134 gripe_user_supplied_eval ("lsode");
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135 }
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136
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137 return retval;
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138 }
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139
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140 #define LSODE_ABORT() \
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141 return retval
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142
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143 #define LSODE_ABORT1(msg) \
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144 do \
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145 { \
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146 error ("lsode: " msg); \
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147 LSODE_ABORT (); \
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148 } \
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149 while (0)
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150
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151 #define LSODE_ABORT2(fmt, arg) \
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152 do \
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153 { \
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154 error ("lsode: " fmt, arg); \
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155 LSODE_ABORT (); \
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156 } \
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157 while (0)
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158
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159 DEFUN (lsode, args, nargout,
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160 "-*- texinfo -*-\n\
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161 @deftypefn {Built-in Function} {[@var{x}, @var{istate}, @var{msg}] =} lsode (@var{fcn}, @var{x_0}, @var{t})\n\
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162 @deftypefnx {Built-in Function} {[@var{x}, @var{istate}, @var{msg}] =} lsode (@var{fcn}, @var{x_0}, @var{t}, @var{t_crit})\n\
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163 Ordinary Differential Equation (ODE) solver.\n\
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164 \n\
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165 The set of differential equations to solve is\n\
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166 @tex\n\
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167 $$ {dx \\over dt} = f (x, t) $$\n\
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168 with\n\
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169 $$ x(t_0) = x_0 $$\n\
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170 @end tex\n\
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171 @ifnottex\n\
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172 \n\
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173 @example\n\
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174 @group\n\
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175 dx\n\
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176 -- = f (x, t)\n\
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177 dt\n\
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178 @end group\n\
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179 @end example\n\
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180 \n\
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181 @noindent\n\
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182 with\n\
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183 \n\
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184 @example\n\
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185 x(t_0) = x_0\n\
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186 @end example\n\
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187 \n\
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188 @end ifnottex\n\
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189 The solution is returned in the matrix @var{x}, with each row\n\
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190 corresponding to an element of the vector @var{t}. The first element\n\
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191 of @var{t} should be @math{t_0} and should correspond to the initial\n\
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192 state of the system @var{x_0}, so that the first row of the output\n\
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193 is @var{x_0}.\n\
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194 \n\
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195 The first argument, @var{fcn}, is a string, inline, or function handle\n\
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196 that names the function @math{f} to call to compute the vector of right\n\
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197 hand sides for the set of equations. The function must have the form\n\
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198 \n\
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199 @example\n\
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200 @var{xdot} = f (@var{x}, @var{t})\n\
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201 @end example\n\
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202 \n\
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203 @noindent\n\
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204 in which @var{xdot} and @var{x} are vectors and @var{t} is a scalar.\n\
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205 \n\
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206 If @var{fcn} is a two-element string array or a two-element cell array\n\
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207 of strings, inline functions, or function handles, the first element names\n\
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208 the function @math{f} described above, and the second element names a\n\
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209 function to compute the Jacobian of @math{f}. The Jacobian function\n\
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210 must have the form\n\
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211 \n\
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212 @example\n\
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213 @var{jac} = j (@var{x}, @var{t})\n\
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214 @end example\n\
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215 \n\
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216 @noindent\n\
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217 in which @var{jac} is the matrix of partial derivatives\n\
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218 @tex\n\
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219 $$ J = {\\partial f_i \\over \\partial x_j} = \\left[\\matrix{\n\
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220 {\\partial f_1 \\over \\partial x_1}\n\
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221 & {\\partial f_1 \\over \\partial x_2}\n\
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222 & \\cdots\n\
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223 & {\\partial f_1 \\over \\partial x_N} \\cr\n\
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224 {\\partial f_2 \\over \\partial x_1}\n\
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225 & {\\partial f_2 \\over \\partial x_2}\n\
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226 & \\cdots\n\
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227 & {\\partial f_2 \\over \\partial x_N} \\cr\n\
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228 \\vdots & \\vdots & \\ddots & \\vdots \\cr\n\
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229 {\\partial f_3 \\over \\partial x_1}\n\
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230 & {\\partial f_3 \\over \\partial x_2}\n\
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231 & \\cdots\n\
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232 & {\\partial f_3 \\over \\partial x_N} \\cr}\\right]$$\n\
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233 @end tex\n\
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234 @ifnottex\n\
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235 \n\
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236 @example\n\
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237 @group\n\
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238 | df_1 df_1 df_1 |\n\
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239 | ---- ---- ... ---- |\n\
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240 | dx_1 dx_2 dx_N |\n\
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241 | |\n\
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242 | df_2 df_2 df_2 |\n\
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243 | ---- ---- ... ---- |\n\
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244 df_i | dx_1 dx_2 dx_N |\n\
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245 jac = ---- = | |\n\
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246 dx_j | . . . . |\n\
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247 | . . . . |\n\
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248 | . . . . |\n\
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249 | |\n\
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250 | df_N df_N df_N |\n\
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251 | ---- ---- ... ---- |\n\
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252 | dx_1 dx_2 dx_N |\n\
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253 @end group\n\
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254 @end example\n\
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255 \n\
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256 @end ifnottex\n\
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257 \n\
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258 The second and third arguments specify the initial state of the system,\n\
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259 @math{x_0}, and the initial value of the independent variable @math{t_0}.\n\
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260 \n\
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261 The fourth argument is optional, and may be used to specify a set of\n\
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262 times that the ODE solver should not integrate past. It is useful for\n\
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263 avoiding difficulties with singularities and points where there is a\n\
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264 discontinuity in the derivative.\n\
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265 \n\
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266 After a successful computation, the value of @var{istate} will be 2\n\
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267 (consistent with the Fortran version of @sc{lsode}).\n\
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268 \n\
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269 If the computation is not successful, @var{istate} will be something\n\
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270 other than 2 and @var{msg} will contain additional information.\n\
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271 \n\
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272 You can use the function @code{lsode_options} to set optional\n\
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273 parameters for @code{lsode}.\n\
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274 @seealso{daspk, dassl, dasrt}\n\
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275 @end deftypefn")
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276 {
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277 octave_value_list retval;
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278
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279 warned_fcn_imaginary = false;
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280 warned_jac_imaginary = false;
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281
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282 unwind_protect frame;
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283
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2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 9377
diff changeset
284 frame.protect_var (call_depth);
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
285 call_depth++;
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
286
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
287 if (call_depth > 1)
3323
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe]
jwe
parents: 3321
diff changeset
288 LSODE_ABORT1 ("invalid recursive call");
2928
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jwe
parents:
diff changeset
289
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
290 int nargin = args.length ();
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
291
3959
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe]
jwe
parents: 3957
diff changeset
292 if (nargin > 2 && nargin < 5 && nargout < 4)
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
293 {
5729
e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe]
jwe
parents: 5694
diff changeset
294 std::string fcn_name, fname, jac_name, jname;
3991
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe]
jwe
parents: 3971
diff changeset
295 lsode_fcn = 0;
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe]
jwe
parents: 3971
diff changeset
296 lsode_jac = 0;
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe]
jwe
parents: 3971
diff changeset
297
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
298 octave_value f_arg = args(0);
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
299
5729
e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe]
jwe
parents: 5694
diff changeset
300 if (f_arg.is_cell ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
301 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
302 Cell c = f_arg.cell_value ();
20267
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20207
diff changeset
303 if (c.numel () == 1)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
304 f_arg = c(0);
20267
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20207
diff changeset
305 else if (c.numel () == 2)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
306 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
307 if (c(0).is_function_handle () || c(0).is_inline_function ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
308 lsode_fcn = c(0).function_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
309 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
310 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
311 fcn_name = unique_symbol_name ("__lsode_fcn__");
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
312 fname = "function y = ";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
313 fname.append (fcn_name);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
314 fname.append (" (x, t) y = ");
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
315 lsode_fcn = extract_function (c(0), "lsode", fcn_name, fname,
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
316 "; endfunction");
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
317 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
318
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
319 if (lsode_fcn)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
320 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
321 if (c(1).is_function_handle () || c(1).is_inline_function ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
322 lsode_jac = c(1).function_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
323 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
324 {
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
325 jac_name = unique_symbol_name ("__lsode_jac__");
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
326 jname = "function jac = ";
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
327 jname.append (jac_name);
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
328 jname.append (" (x, t) jac = ");
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
329 lsode_jac = extract_function (c(1), "lsode", jac_name,
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
330 jname, "; endfunction");
2928
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jwe
parents:
diff changeset
331
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
332 if (!lsode_jac)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
333 {
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14501
diff changeset
334 if (fcn_name.length ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
335 clear_function (fcn_name);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
336 lsode_fcn = 0;
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
337 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
338 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
339 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
340 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
341 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
342 LSODE_ABORT1 ("incorrect number of elements in cell array");
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
343 }
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
344
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14501
diff changeset
345 if (!lsode_fcn && ! f_arg.is_cell ())
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
346 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
347 if (f_arg.is_function_handle () || f_arg.is_inline_function ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
348 lsode_fcn = f_arg.function_value ();
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
349 else
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
350 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
351 switch (f_arg.rows ())
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
352 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
353 case 1:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
354 do
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
355 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
356 fcn_name = unique_symbol_name ("__lsode_fcn__");
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
357 fname = "function y = ";
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
358 fname.append (fcn_name);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
359 fname.append (" (x, t) y = ");
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
360 lsode_fcn = extract_function (f_arg, "lsode", fcn_name,
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
361 fname, "; endfunction");
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
362 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
363 while (0);
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
364 break;
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
365
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
366 case 2:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
367 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
368 string_vector tmp = f_arg.all_strings ();
5729
e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe]
jwe
parents: 5694
diff changeset
369
20587
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
370 fcn_name = unique_symbol_name ("__lsode_fcn__");
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
371 fname = "function y = ";
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
372 fname.append (fcn_name);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
373 fname.append (" (x, t) y = ");
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
374 lsode_fcn = extract_function (tmp(0), "lsode", fcn_name,
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
375 fname, "; endfunction");
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
376
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
377 if (lsode_fcn)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
378 {
20587
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
379 jac_name = unique_symbol_name ("__lsode_jac__");
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
380 jname = "function jac = ";
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
381 jname.append (jac_name);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
382 jname.append (" (x, t) jac = ");
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
383 lsode_jac = extract_function (tmp(1), "lsode",
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
384 jac_name, jname,
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
385 "; endfunction");
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
386
20587
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
387 if (!lsode_jac)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
388 {
20587
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
389 if (fcn_name.length ())
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
390 clear_function (fcn_name);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20463
diff changeset
391 lsode_fcn = 0;
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
392 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
393 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
394 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
395 break;
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
396
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
397 default:
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
398 LSODE_ABORT1
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
399 ("first arg should be a string or 2-element string array");
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
400 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
401 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
402 }
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
403
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
404 if (error_state || ! lsode_fcn)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
405 LSODE_ABORT ();
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
406
3419
e71b3d1dd327 [project @ 2000-01-12 05:23:34 by jwe]
jwe
parents: 3373
diff changeset
407 ColumnVector state (args(1).vector_value ());
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
408
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
409 if (error_state)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
410 LSODE_ABORT1 ("expecting state vector as second argument");
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
411
3419
e71b3d1dd327 [project @ 2000-01-12 05:23:34 by jwe]
jwe
parents: 3373
diff changeset
412 ColumnVector out_times (args(2).vector_value ());
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
413
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
414 if (error_state)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
415 LSODE_ABORT1 ("expecting output time vector as third argument");
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
416
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
417 ColumnVector crit_times;
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
418
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
419 int crit_times_set = 0;
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
420 if (nargin > 3)
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
421 {
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
422 crit_times = ColumnVector (args(3).vector_value ());
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
423
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
424 if (error_state)
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
425 LSODE_ABORT1 ("expecting critical time vector as fourth argument");
2928
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jwe
parents:
diff changeset
426
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parents: 10066
diff changeset
427 crit_times_set = 1;
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diff changeset
428 }
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parents:
diff changeset
429
3243
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parents: 3131
diff changeset
430 double tzero = out_times (0);
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
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parents: 3131
diff changeset
431
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
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parents: 3131
diff changeset
432 ODEFunc func (lsode_user_function);
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
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parents: 3131
diff changeset
433 if (lsode_jac)
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diff changeset
434 func.set_jacobian_function (lsode_user_jacobian);
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diff changeset
435
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parents: 3131
diff changeset
436 LSODE ode (state, tzero, func);
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
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parents: 3131
diff changeset
437
4122
19a1626b8d57 [project @ 2002-10-23 22:10:53 by jwe]
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parents: 4117
diff changeset
438 ode.set_options (lsode_opts);
3243
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parents: 3131
diff changeset
439
3859
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parents: 3747
diff changeset
440 Matrix output;
3243
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parents: 3131
diff changeset
441 if (crit_times_set)
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diff changeset
442 output = ode.integrate (out_times, crit_times);
3243
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diff changeset
443 else
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diff changeset
444 output = ode.integrate (out_times);
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diff changeset
445
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
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diff changeset
446 if (fcn_name.length ())
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diff changeset
447 clear_function (fcn_name);
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diff changeset
448 if (jac_name.length ())
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diff changeset
449 clear_function (jac_name);
5729
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parents: 5694
diff changeset
450
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diff changeset
451 std::string msg = ode.error_message ();
3997
d4091aff6468 [project @ 2002-07-17 18:00:06 by jwe]
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parents: 3991
diff changeset
452
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diff changeset
453 retval(2) = msg;
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diff changeset
454 retval(1) = static_cast<double> (ode.integration_state ());
3959
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parents: 3957
diff changeset
455
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diff changeset
456 if (ode.integration_ok ())
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diff changeset
457 retval(0) = output;
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diff changeset
458 else
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parents: 20463
diff changeset
459 {
f90c8372b7ba eliminate many more simple uses of error_state
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diff changeset
460 retval(0) = Matrix ();
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parents: 3957
diff changeset
461
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diff changeset
462 if (nargout < 2)
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diff changeset
463 error ("lsode: %s", msg.c_str ());
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diff changeset
464 }
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parents: 3131
diff changeset
465 }
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parents:
diff changeset
466 else
5823
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diff changeset
467 print_usage ();
2928
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parents:
diff changeset
468
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
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parents:
diff changeset
469 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
470 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
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parents:
diff changeset
471
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
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parents:
diff changeset
472 /*
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473
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474 ## dassl-1.m
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diff changeset
475 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
476 ## Test lsode() function
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
477 ##
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diff changeset
478 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
479 ## Comalco Research and Technology
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diff changeset
480 ## 20 May 1998
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
481 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
482 ## Problem
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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parents: 14138
diff changeset
483 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
484 ## y1' = -y2, y1(0) = 1
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
485 ## y2' = y1, y2(0) = 0
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
486 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
487 ## Solution
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
488 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
489 ## y1(t) = cos(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
490 ## y2(t) = sin(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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diff changeset
491 ##
14085
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diff changeset
492 %!function xdot = __f (x, t)
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diff changeset
493 %! xdot = [-x(2); x(1)];
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diff changeset
494 %!endfunction
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diff changeset
495 %!test
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diff changeset
496 %!
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diff changeset
497 %! x0 = [1; 0];
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diff changeset
498 %! xdot0 = [0; 1];
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diff changeset
499 %! t = (0:1:10)';
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diff changeset
500 %!
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parents: 7017
diff changeset
501 %! tol = 500 * lsode_options ("relative tolerance");
11586
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parents: 11553
diff changeset
502 %!
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
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diff changeset
503 %! x = lsode ("__f", x0, t);
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John W. Eaton <jwe@octave.org>
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diff changeset
504 %!
7562
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diff changeset
505 %! y = [cos(t), sin(t)];
11586
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John W. Eaton <jwe@octave.org>
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diff changeset
506 %!
14501
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Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
507 %! assert (x, y, tol);
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
508
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
509 %!function xdotdot = __f (x, t)
7562
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John W. Eaton <jwe@octave.org>
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diff changeset
510 %! xdotdot = [x(2); -x(1)];
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
511 %!endfunction
7562
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John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
512 %!test
11586
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John W. Eaton <jwe@octave.org>
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diff changeset
513 %!
7562
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John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
514 %! x0 = [1; 0];
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
515 %! t = [0; 2*pi];
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parents: 7017
diff changeset
516 %! tol = 100 * dassl_options ("relative tolerance");
11586
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John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
517 %!
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
518 %! x = lsode ("__f", x0, t);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff changeset
519 %!
7562
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parents: 7017
diff changeset
520 %! y = [1, 0; 1, 0];
11586
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John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
521 %!
14501
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Rik <octave@nomad.inbox5.com>
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diff changeset
522 %! assert (x, y, tol);
7562
c827f5673321 move tests to individual source files
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diff changeset
523
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
524 %!function xdot = __f (x, t)
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
525 %! xdot = x;
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
526 %!endfunction
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
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diff changeset
527 %!test
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John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
528 %!
7562
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parents: 7017
diff changeset
529 %! x0 = 1;
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
530 %! t = [0; 1];
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
531 %! tol = 100 * dassl_options ("relative tolerance");
11586
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John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
532 %!
14085
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Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
533 %! x = lsode ("__f", x0, t);
11586
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John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
534 %!
7562
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John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
535 %! y = [1; e];
11586
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John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
536 %!
14501
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Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
537 %! assert (x, y, tol);
7562
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John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
538
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
539 %!test
c827f5673321 move tests to individual source files
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parents: 7017
diff changeset
540 %! lsode_options ("absolute tolerance", eps);
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
541 %! assert (lsode_options ("absolute tolerance") == eps);
7562
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John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
542
14501
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Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
543 %!error lsode_options ("foo", 1, 2)
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parents: 7017
diff changeset
544 */