Mercurial > octave
annotate liboctave/numeric/LSODE.cc @ 21724:aba2e6293dd8
use "#if ..." consistently instead of "#ifdef" and "#ifndef"
* configure.ac, Doxyfile.in, make_int.cc, Backend.cc, BaseControl.cc,
ButtonControl.cc, Canvas.cc, CheckBoxControl.cc, Container.cc,
ContextMenu.cc, EditControl.cc, Figure.cc, FigureWindow.cc,
GLCanvas.cc, KeyMap.cc, ListBoxControl.cc, Logger.cc, Menu.cc,
MouseModeActionGroup.cc, Object.cc, ObjectFactory.cc,
ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc,
PushTool.cc, QtHandlesUtils.cc, RadioButtonControl.cc,
SliderControl.cc, TextControl.cc, TextEdit.cc,
ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, __init_qt__.cc,
annotation-dialog.cc, gl-select.cc, module.mk, color-picker.cc,
dialog.cc, documentation-dock-widget.cc, files-dock-widget.cc,
find-files-dialog.cc, find-files-model.cc, history-dock-widget.cc,
liboctgui-build-info.in.cc, file-editor-tab.cc, file-editor.cc,
find-dialog.cc, marker.cc, marker.h, octave-qscintilla.cc,
octave-txt-lexer.cc, main-window.cc, octave-cmd.cc,
octave-dock-widget.cc, octave-gui.cc, octave-interpreter.cc,
octave-qt-link.cc, parser.cc, webinfo.cc, resource-manager.cc,
settings-dialog.cc, shortcut-manager.cc, terminal-dock-widget.cc,
thread-manager.cc, welcome-wizard.cc, workspace-model.cc,
workspace-view.cc, build-env.in.cc, Cell.cc, __contourc__.cc,
__dispatch__.cc, __dsearchn__.cc, __ichol__.cc, __ilu__.cc,
__lin_interpn__.cc, __luinc__.cc, __magick_read__.cc,
__pchip_deriv__.cc, __qp__.cc, balance.cc, besselj.cc, betainc.cc,
bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h,
cdisplay.c, cdisplay.h, cellfun.cc, coct-hdf5-types.c, colloc.cc,
comment-list.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc,
debug.cc, defaults.cc, defaults.in.h, defun.cc, det.cc, dirfns.cc,
display.cc, dlmread.cc, dot.cc, dynamic-ld.cc, eig.cc, ellipj.cc,
error.cc, errwarn.cc, event-queue.cc, fft.cc, fft2.cc, fftn.cc,
file-io.cc, filter.cc, find.cc, ft-text-renderer.cc, gammainc.cc,
gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc,
gl-render.cc, gl2ps-print.cc, graphics.cc, gripes.cc, hash.cc,
help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, jit-ir.cc, jit-ir.h,
jit-typeinfo.cc, jit-typeinfo.h, jit-util.cc, jit-util.h, kron.cc,
load-path.cc, load-save.cc, lookup.cc, ls-ascii-helper.cc,
ls-hdf5.cc, ls-mat-ascii.cc, ls-mat4.cc, ls-mat5.cc,
ls-oct-binary.cc, ls-oct-text.cc, ls-oct-text.h, ls-utils.cc,
lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mex.cc, mex.h,
mexproto.h, mgorth.cc, nproc.cc, oct-errno.in.cc, oct-fstrm.cc,
oct-hdf5-types.cc, oct-hdf5-types.h, oct-hist.cc, oct-iostrm.cc,
oct-lvalue.cc, oct-map.cc, oct-prcstrm.cc, oct-procbuf.cc,
oct-stdstrm.h, oct-stream.cc, oct-strstrm.cc, oct-tex-lexer.in.ll,
oct-tex-parser.in.yy, octave-link.cc, ordschur.cc, pager.cc,
pinv.cc, pr-output.cc, procstream.cc, profiler.cc, psi.cc,
pt-jit.cc, pt-jit.h, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc,
regexp.cc, schur.cc, sighandlers.cc, sighandlers.h, siglist.c,
siglist.h, sparse-xdiv.cc, sparse-xpow.cc, sparse.cc, spparms.cc,
sqrtm.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc,
sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc, text-renderer.cc,
time.cc, toplev.cc, tril.cc, tsearch.cc, txt-eng.cc, typecast.cc,
urlwrite.cc, utils.cc, variables.cc, xdiv.cc, xgl2ps.c, xnorm.cc,
xpow.cc, zfstream.cc, zfstream.h, __delaunayn__.cc, __eigs__.cc,
__fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __osmesa_print__.cc, __voronoi__.cc, amd.cc,
audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc, colamd.cc,
convhulln.cc, dmperm.cc, fftw.cc, qr.cc, symbfact.cc, symrcm.cc,
liboctinterp-build-info.in.cc, mkbuiltins, mkops, ov-base.cc,
ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.cc,
ov-cell.cc, ov-ch-mat.cc, ov-class.cc, ov-classdef.cc, ov-colon.cc,
ov-complex.cc, ov-cs-list.cc, ov-cx-diag.cc, ov-cx-mat.cc,
ov-cx-sparse.cc, ov-dld-fcn.cc, ov-fcn-handle.cc, ov-fcn-inline.cc,
ov-fcn.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-int16.cc,
ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.cc, ov-lazy-idx.cc,
ov-mex-fcn.cc, ov-null-mat.cc, ov-oncleanup.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, ov-struct.cc, ov-typeinfo.cc,
ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc,
ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, ovl.cc, octave.cc, octave.h,
op-b-b.cc, op-b-bm.cc, op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc,
op-bm-sbm.cc, op-cdm-cdm.cc, op-cdm-cm.cc, op-cdm-dm.cc,
op-cdm-m.cc, op-cell.cc, op-chm.cc, op-class.cc, op-cm-cdm.cc,
op-cm-cm.cc, op-cm-cs.cc, op-cm-dm.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc,
op-cs-s.cc, op-cs-scm.cc, op-cs-sm.cc, op-dm-cdm.cc, op-dm-cm.cc,
op-dm-dm.cc, op-dm-m.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-double-conv.cc,
op-fcdm-fcdm.cc, op-fcdm-fcm.cc, op-fcdm-fdm.cc, op-fcdm-fm.cc,
op-fcm-fcdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fdm.cc,
op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc,
op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fcdm.cc, op-fdm-fcm.cc,
op-fdm-fdm.cc, op-fdm-fm.cc, op-float-conv.cc, op-fm-fcdm.cc,
op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fdm.cc, op-fm-fm.cc, op-fm-fs.cc,
op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc,
op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc,
op-int-conv.cc, op-m-cdm.cc, op-m-cm.cc, op-m-cs.cc, op-m-dm.cc,
op-m-m.cc, op-m-s.cc, op-m-scm.cc, op-m-sm.cc, op-pm-pm.cc,
op-pm-scm.cc, op-pm-sm.cc, op-pm-template.cc, op-range.cc,
op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc,
op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc,
op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc,
op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc,
op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc,
op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc,
lex.ll, oct-parse.in.yy, pt-arg-list.cc, pt-array-list.cc,
pt-assign.cc, pt-binop.cc, pt-bp.cc, pt-cbinop.cc, pt-cell.cc,
pt-check.cc, pt-classdef.cc, pt-cmd.cc, pt-colon.cc, pt-const.cc,
pt-decl.cc, pt-eval.cc, pt-except.cc, pt-exp.cc, pt-fcn-handle.cc,
pt-funcall.cc, pt-id.cc, pt-idx.cc, pt-jump.cc, pt-loop.cc,
pt-loop.h, pt-mat.cc, pt-misc.cc, pt-pr-code.cc, pt-select.cc,
pt-stmt.cc, pt-unop.cc, pt.cc, token.cc, Array-jit.cc, Array-tc.cc,
version.cc, Array-C.cc, Array-b.cc, Array-ch.cc, Array-d.cc,
Array-f.cc, Array-fC.cc, Array-i.cc, Array-idx-vec.cc, Array-s.cc,
Array-str.cc, Array-util.cc, Array-voidp.cc, Array.cc,
CColVector.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc,
CRowVector.cc, CSparse.cc, MArray-C.cc, MArray-d.cc, MArray-f.cc,
MArray-fC.cc, MArray-i.cc, MArray-s.cc, MSparse-C.cc, MSparse-d.cc,
MatrixType.cc, PermMatrix.cc, Range.cc, Sparse-C.cc, Sparse-b.cc,
Sparse-d.cc, boolMatrix.cc, boolNDArray.cc, boolSparse.cc,
chMatrix.cc, chNDArray.cc, dColVector.cc, dDiagMatrix.cc,
dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, dim-vector.cc,
dim-vector.h, fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc,
fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc,
fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc,
int16NDArray.cc, int32NDArray.cc, int64NDArray.cc, int8NDArray.cc,
uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc,
uint8NDArray.cc, Faddeeva.cc, blaswrap.c, cquit.c, f77-extern.cc,
f77-fcn.c, f77-fcn.h, lo-error.c, lo-error.h, quit.cc, quit.h,
liboctave-build-info.in.cc, CollocWt.cc, DASPK.cc, DASRT.cc,
DASSL.cc, EIG.cc, LSODE.cc, ODES.cc, Quad.cc, aepbalance.cc,
chol.cc, eigs-base.cc, fEIG.cc, gepbalance.cc, hess.cc,
lo-mappers.cc, lo-specfun.cc, lu.cc, oct-convn.cc, oct-fftw.cc,
oct-norm.cc, oct-rand.cc, oct-spparms.cc, qr.cc, qrp.cc,
randmtzig.cc, randpoisson.cc, schur.cc, sparse-chol.cc,
sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, svd.cc, mk-ops.awk,
mx-defs.h, dir-ops.cc, file-ops.cc, file-stat.cc, lo-sysdep.cc,
mach-info.cc, oct-env.cc, oct-group.cc, oct-passwd.cc,
oct-syscalls.cc, oct-time.cc, oct-uname.cc, pathlen.h, syswait.h,
cmd-edit.cc, cmd-hist.cc, data-conv.cc, f2c-main.c, glob-match.cc,
kpse.cc, lo-array-errwarn.cc, lo-array-gripes.cc, lo-cutils.c,
lo-cutils.h, lo-ieee.cc, lo-ieee.h, lo-regexp.cc, lo-utils.cc,
oct-base64.cc, oct-glob.cc, oct-inttypes.cc, oct-inttypes.h,
oct-locbuf.cc, oct-mutex.cc, oct-rl-edit.c, oct-rl-edit.h,
oct-rl-hist.c, oct-rl-hist.h, oct-shlib.cc, oct-sort.cc,
pathsearch.cc, singleton-cleanup.cc, sparse-sort.cc, sparse-util.cc,
statdefs.h, str-vec.cc, unwind-prot.cc, url-transfer.cc,
acinclude.m4, display-available.c, display-available.h, main-cli.cc,
main-gui.cc, main.in.cc, mkoctfile.in.cc, octave-build-info.in.cc,
octave-config.in.cc, shared-fcns.h:
Use "#if ..." consistently instead of "#ifdef" and "#ifndef".
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 17 May 2016 12:09:30 -0400 |
parents | 40de9f8f23a6 |
children | 59cadee1c74b |
rev | line source |
---|---|
3 | 1 /* |
2 | |
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3 Copyright (C) 1993-2015 John W. Eaton |
3 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
3 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
3 | 20 |
21 */ | |
22 | |
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23 #if defined (HAVE_CONFIG_H) |
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24 # include "config.h" |
3 | 25 #endif |
26 | |
1367 | 27 #include <cfloat> |
28 | |
5765 | 29 #include <sstream> |
30 | |
1842 | 31 #include "LSODE.h" |
1847 | 32 #include "f77-fcn.h" |
227 | 33 #include "lo-error.h" |
7231 | 34 #include "lo-math.h" |
4180 | 35 #include "quit.h" |
3 | 36 |
11495 | 37 typedef octave_idx_type (*lsode_fcn_ptr) (const octave_idx_type&, |
38 const double&, double*, | |
39 double*, octave_idx_type&); | |
3507 | 40 |
11495 | 41 typedef octave_idx_type (*lsode_jac_ptr) (const octave_idx_type&, |
42 const double&, double*, | |
43 const octave_idx_type&, | |
44 const octave_idx_type&, | |
45 double*, const octave_idx_type&); | |
3507 | 46 |
3 | 47 extern "C" |
4552 | 48 { |
49 F77_RET_T | |
11495 | 50 F77_FUNC (dlsode, DLSODE) (lsode_fcn_ptr, octave_idx_type&, double*, |
51 double&, double&, octave_idx_type&, double&, | |
52 const double*, octave_idx_type&, | |
53 octave_idx_type&, octave_idx_type&, | |
54 double*, octave_idx_type&, octave_idx_type*, | |
55 octave_idx_type&, lsode_jac_ptr, | |
56 octave_idx_type&); | |
4552 | 57 } |
3 | 58 |
532 | 59 static ODEFunc::ODERHSFunc user_fun; |
60 static ODEFunc::ODEJacFunc user_jac; | |
3 | 61 static ColumnVector *tmp_x; |
62 | |
5275 | 63 static octave_idx_type |
64 lsode_f (const octave_idx_type& neq, const double& time, double *, | |
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65 double *deriv, octave_idx_type& ierr) |
3 | 66 { |
4180 | 67 BEGIN_INTERRUPT_WITH_EXCEPTIONS; |
68 | |
2343 | 69 ColumnVector tmp_deriv; |
3 | 70 |
1360 | 71 // NOTE: this won't work if LSODE passes copies of the state vector. |
72 // In that case we have to create a temporary vector object | |
73 // and copy. | |
74 | |
1251 | 75 tmp_deriv = (*user_fun) (*tmp_x, time); |
3 | 76 |
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77 if (tmp_deriv.is_empty ()) |
1251 | 78 ierr = -1; |
258 | 79 else |
80 { | |
5275 | 81 for (octave_idx_type i = 0; i < neq; i++) |
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82 deriv[i] = tmp_deriv.elem (i); |
258 | 83 } |
3 | 84 |
4180 | 85 END_INTERRUPT_WITH_EXCEPTIONS; |
86 | |
3 | 87 return 0; |
88 } | |
89 | |
5275 | 90 static octave_idx_type |
91 lsode_j (const octave_idx_type& neq, const double& time, double *, | |
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92 const octave_idx_type&, const octave_idx_type&, double *pd, |
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93 const octave_idx_type& nrowpd) |
3 | 94 { |
4180 | 95 BEGIN_INTERRUPT_WITH_EXCEPTIONS; |
96 | |
1251 | 97 Matrix tmp_jac (neq, neq); |
3 | 98 |
1360 | 99 // NOTE: this won't work if LSODE passes copies of the state vector. |
100 // In that case we have to create a temporary vector object | |
101 // and copy. | |
102 | |
1251 | 103 tmp_jac = (*user_jac) (*tmp_x, time); |
3 | 104 |
5275 | 105 for (octave_idx_type j = 0; j < neq; j++) |
106 for (octave_idx_type i = 0; i < neq; i++) | |
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107 pd[nrowpd * j + i] = tmp_jac (i, j); |
3 | 108 |
4180 | 109 END_INTERRUPT_WITH_EXCEPTIONS; |
110 | |
3 | 111 return 0; |
112 } | |
113 | |
114 ColumnVector | |
1842 | 115 LSODE::do_integrate (double tout) |
3 | 116 { |
1945 | 117 ColumnVector retval; |
118 | |
5275 | 119 static octave_idx_type nn = 0; |
4049 | 120 |
121 if (! initialized || restart || ODEFunc::reset || LSODE_options::reset) | |
1945 | 122 { |
4049 | 123 integration_error = false; |
1945 | 124 |
4049 | 125 initialized = true; |
126 | |
127 istate = 1; | |
128 | |
5275 | 129 octave_idx_type n = size (); |
4049 | 130 |
131 nn = n; | |
3955 | 132 |
5275 | 133 octave_idx_type max_maxord = 0; |
4231 | 134 |
4049 | 135 if (integration_method () == "stiff") |
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136 { |
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137 max_maxord = 5; |
4231 | 138 |
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139 if (jac) |
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140 method_flag = 21; |
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141 else |
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142 method_flag = 22; |
3955 | 143 |
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144 liw = 20 + n; |
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145 lrw = 22 + n * (9 + n); |
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146 } |
4049 | 147 else |
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148 { |
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149 max_maxord = 12; |
4231 | 150 |
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151 method_flag = 10; |
3955 | 152 |
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153 liw = 20; |
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154 lrw = 22 + 16 * n; |
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155 } |
4049 | 156 |
4231 | 157 maxord = maximum_order (); |
158 | |
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159 iwork.resize (dim_vector (liw, 1)); |
5552 | 160 |
161 for (octave_idx_type i = 4; i < 9; i++) | |
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162 iwork(i) = 0; |
5552 | 163 |
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164 rwork.resize (dim_vector (lrw, 1)); |
5552 | 165 |
166 for (octave_idx_type i = 4; i < 9; i++) | |
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167 rwork(i) = 0; |
5552 | 168 |
4231 | 169 if (maxord >= 0) |
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170 { |
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171 if (maxord > 0 && maxord <= max_maxord) |
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172 { |
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173 iwork(4) = maxord; |
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174 iopt = 1; |
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175 } |
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176 else |
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177 { |
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178 // FIXME: Should this be a warning? |
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179 (*current_liboctave_error_handler) |
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180 ("lsode: invalid value for maximum order"); |
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181 integration_error = true; |
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182 return retval; |
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183 } |
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184 } |
4231 | 185 |
4049 | 186 if (stop_time_set) |
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187 { |
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188 itask = 4; |
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189 rwork(0) = stop_time; |
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190 iopt = 1; |
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191 } |
4049 | 192 else |
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193 { |
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194 itask = 1; |
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195 } |
258 | 196 |
4049 | 197 restart = false; |
198 | |
199 // ODEFunc | |
3 | 200 |
4049 | 201 // NOTE: this won't work if LSODE passes copies of the state vector. |
202 // In that case we have to create a temporary vector object | |
203 // and copy. | |
3 | 204 |
4049 | 205 tmp_x = &x; |
206 | |
207 user_fun = function (); | |
208 user_jac = jacobian_function (); | |
209 | |
2343 | 210 ColumnVector xdot = (*user_fun) (x, t); |
211 | |
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212 if (x.numel () != xdot.numel ()) |
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213 { |
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214 // FIXME: Should this be a warning? |
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215 (*current_liboctave_error_handler) |
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216 ("lsode: inconsistent sizes for state and derivative vectors"); |
2343 | 217 |
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218 integration_error = true; |
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219 return retval; |
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220 } |
2343 | 221 |
4049 | 222 ODEFunc::reset = false; |
223 | |
224 // LSODE_options | |
225 | |
226 rel_tol = relative_tolerance (); | |
227 abs_tol = absolute_tolerance (); | |
228 | |
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229 octave_idx_type abs_tol_len = abs_tol.numel (); |
4049 | 230 |
231 if (abs_tol_len == 1) | |
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232 itol = 1; |
4049 | 233 else if (abs_tol_len == n) |
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234 itol = 2; |
4049 | 235 else |
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236 { |
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237 // FIXME: Should this be a warning? |
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238 (*current_liboctave_error_handler) |
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239 ("lsode: inconsistent sizes for state and absolute tolerance vectors"); |
4049 | 240 |
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241 integration_error = true; |
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242 return retval; |
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243 } |
2343 | 244 |
4049 | 245 double iss = initial_step_size (); |
246 if (iss >= 0.0) | |
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247 { |
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248 rwork(4) = iss; |
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249 iopt = 1; |
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250 } |
4049 | 251 |
252 double maxss = maximum_step_size (); | |
253 if (maxss >= 0.0) | |
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254 { |
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255 rwork(5) = maxss; |
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256 iopt = 1; |
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257 } |
4049 | 258 |
259 double minss = minimum_step_size (); | |
260 if (minss >= 0.0) | |
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261 { |
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262 rwork(6) = minss; |
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263 iopt = 1; |
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264 } |
4049 | 265 |
5275 | 266 octave_idx_type sl = step_limit (); |
4049 | 267 if (sl > 0) |
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268 { |
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269 iwork(5) = sl; |
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270 iopt = 1; |
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271 } |
4049 | 272 |
273 LSODE_options::reset = false; | |
3 | 274 } |
275 | |
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276 double *px = x.fortran_vec (); |
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277 |
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278 double *pabs_tol = abs_tol.fortran_vec (); |
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279 |
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280 octave_idx_type *piwork = iwork.fortran_vec (); |
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281 double *prwork = rwork.fortran_vec (); |
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282 |
4583 | 283 F77_XFCN (dlsode, DLSODE, (lsode_f, nn, px, t, tout, itol, rel_tol, |
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284 pabs_tol, itask, istate, iopt, prwork, lrw, |
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285 piwork, liw, lsode_j, method_flag)); |
3 | 286 |
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287 switch (istate) |
3 | 288 { |
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289 case 1: // prior to initial integration step. |
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290 case 2: // lsode was successful. |
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291 retval = x; |
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292 t = tout; |
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293 break; |
3996 | 294 |
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295 case -1: // excess work done on this call (perhaps wrong mf). |
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296 case -2: // excess accuracy requested (tolerances too small). |
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297 case -3: // invalid input detected (see printed message). |
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298 case -4: // repeated error test failures (check all inputs). |
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299 case -5: // repeated convergence failures (perhaps bad Jacobian |
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300 // supplied or wrong choice of mf or tolerances). |
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301 case -6: // error weight became zero during problem. (solution |
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302 // component i vanished, and atol or atol(i) = 0.) |
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303 case -13: // return requested in user-supplied function. |
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304 integration_error = true; |
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305 break; |
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306 |
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307 default: |
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308 integration_error = true; |
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309 (*current_liboctave_error_handler) |
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310 ("unrecognized value of istate (= %d) returned from lsode", istate); |
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311 break; |
3 | 312 } |
313 | |
1945 | 314 return retval; |
3 | 315 } |
316 | |
3959 | 317 std::string |
318 LSODE::error_message (void) const | |
319 { | |
320 std::string retval; | |
321 | |
5765 | 322 std::ostringstream buf; |
323 buf << t; | |
324 std::string t_curr = buf.str (); | |
4042 | 325 |
3959 | 326 switch (istate) |
327 { | |
328 case 1: | |
3996 | 329 retval = "prior to initial integration step"; |
3959 | 330 break; |
331 | |
332 case 2: | |
333 retval = "successful exit"; | |
334 break; | |
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335 |
3959 | 336 case 3: |
337 retval = "prior to continuation call with modified parameters"; | |
338 break; | |
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339 |
3996 | 340 case -1: |
4042 | 341 retval = std::string ("excess work on this call (t = ") |
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342 + t_curr + "; perhaps wrong integration method)"; |
3996 | 343 break; |
344 | |
345 case -2: | |
346 retval = "excess accuracy requested (tolerances too small)"; | |
347 break; | |
348 | |
349 case -3: | |
350 retval = "invalid input detected (see printed message)"; | |
351 break; | |
352 | |
353 case -4: | |
4042 | 354 retval = std::string ("repeated error test failures (t = ") |
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355 + t_curr + "; check all inputs)"; |
3996 | 356 break; |
357 | |
358 case -5: | |
4042 | 359 retval = std::string ("repeated convergence failures (t = ") |
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360 + t_curr |
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361 + "; perhaps bad Jacobian supplied or wrong choice of integration method or tolerances)"; |
3996 | 362 break; |
363 | |
364 case -6: | |
4042 | 365 retval = std::string ("error weight became zero during problem. (t = ") |
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366 + t_curr |
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367 + "; solution component i vanished, and atol or atol(i) == 0)"; |
3996 | 368 break; |
369 | |
370 case -13: | |
4042 | 371 retval = "return requested in user-supplied function (t = " |
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372 + t_curr + ")"; |
3996 | 373 break; |
374 | |
3959 | 375 default: |
376 retval = "unknown error state"; | |
377 break; | |
378 } | |
379 | |
380 return retval; | |
381 } | |
382 | |
3 | 383 Matrix |
1842 | 384 LSODE::do_integrate (const ColumnVector& tout) |
3 | 385 { |
386 Matrix retval; | |
4049 | 387 |
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388 octave_idx_type n_out = tout.numel (); |
5275 | 389 octave_idx_type n = size (); |
3 | 390 |
391 if (n_out > 0 && n > 0) | |
392 { | |
393 retval.resize (n_out, n); | |
394 | |
5275 | 395 for (octave_idx_type i = 0; i < n; i++) |
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396 retval.elem (0, i) = x.elem (i); |
3 | 397 |
5275 | 398 for (octave_idx_type j = 1; j < n_out; j++) |
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399 { |
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400 ColumnVector x_next = do_integrate (tout.elem (j)); |
258 | 401 |
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402 if (integration_error) |
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403 return retval; |
258 | 404 |
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405 for (octave_idx_type i = 0; i < n; i++) |
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406 retval.elem (j, i) = x_next.elem (i); |
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407 } |
3 | 408 } |
409 | |
410 return retval; | |
411 } | |
412 | |
413 Matrix | |
3511 | 414 LSODE::do_integrate (const ColumnVector& tout, const ColumnVector& tcrit) |
3 | 415 { |
416 Matrix retval; | |
4049 | 417 |
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418 octave_idx_type n_out = tout.numel (); |
5275 | 419 octave_idx_type n = size (); |
3 | 420 |
421 if (n_out > 0 && n > 0) | |
422 { | |
423 retval.resize (n_out, n); | |
424 | |
5275 | 425 for (octave_idx_type i = 0; i < n; i++) |
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426 retval.elem (0, i) = x.elem (i); |
3 | 427 |
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428 octave_idx_type n_crit = tcrit.numel (); |
3 | 429 |
430 if (n_crit > 0) | |
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431 { |
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432 octave_idx_type i_crit = 0; |
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433 octave_idx_type i_out = 1; |
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434 double next_crit = tcrit.elem (0); |
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435 double next_out; |
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436 while (i_out < n_out) |
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437 { |
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438 bool do_restart = false; |
3 | 439 |
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440 next_out = tout.elem (i_out); |
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441 if (i_crit < n_crit) |
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442 next_crit = tcrit.elem (i_crit); |
3 | 443 |
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444 octave_idx_type save_output; |
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445 double t_out; |
3 | 446 |
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447 if (next_crit == next_out) |
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448 { |
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449 set_stop_time (next_crit); |
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450 t_out = next_out; |
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451 save_output = 1; |
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452 i_out++; |
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453 i_crit++; |
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454 do_restart = true; |
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455 } |
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456 else if (next_crit < next_out) |
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457 { |
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458 if (i_crit < n_crit) |
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459 { |
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460 set_stop_time (next_crit); |
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461 t_out = next_crit; |
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462 save_output = 0; |
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463 i_crit++; |
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464 do_restart = true; |
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465 } |
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466 else |
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467 { |
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468 clear_stop_time (); |
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469 t_out = next_out; |
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470 save_output = 1; |
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471 i_out++; |
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472 } |
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473 } |
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474 else |
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475 { |
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476 set_stop_time (next_crit); |
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477 t_out = next_out; |
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478 save_output = 1; |
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479 i_out++; |
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480 } |
3 | 481 |
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482 ColumnVector x_next = do_integrate (t_out); |
3 | 483 |
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484 if (integration_error) |
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485 return retval; |
258 | 486 |
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487 if (save_output) |
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488 { |
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489 for (octave_idx_type i = 0; i < n; i++) |
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490 retval.elem (i_out-1, i) = x_next.elem (i); |
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491 } |
3 | 492 |
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493 if (do_restart) |
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494 force_restart (); |
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495 } |
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496 } |
3 | 497 else |
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498 { |
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499 retval = do_integrate (tout); |
258 | 500 |
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501 if (integration_error) |
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502 return retval; |
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503 } |
3 | 504 } |
505 | |
506 return retval; | |
507 } |