annotate libinterp/corefcn/lsode.cc @ 21301:40de9f8f23a6

Use '#include "config.h"' rather than <config.h>. * mk-octave-config-h.sh, mk-opts.pl, 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, ToolBarButton.cc, __init_qt__.cc, annotation-dialog.cc, gl-select.cc, module.mk, kpty.cpp, 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, file-editor-tab.cc, file-editor-tab.h, file-editor.cc, find-dialog.cc, marker.cc, 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-features.sh, build-env.in.cc, Cell.cc, __contourc__.cc, __dispatch__.cc, __dsearchn__.cc, __ichol__.cc, __ilu__.cc, __lin_interpn__.cc, __pchip_deriv__.cc, __qp__.cc, balance.cc, besselj.cc, betainc.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc, cdisplay.c, 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, 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, hook-fcn.cc, input.cc, inv.cc, jit-ir.cc, jit-typeinfo.cc, jit-util.cc, 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-utils.cc, lsode.cc, lu.cc, luinc.cc, mappers.cc, matrix_type.cc, max.cc, mex.cc, mgorth.cc, nproc.cc, oct-errno.in.cc, oct-fstrm.cc, oct-hdf5-types.cc, oct-hist.cc, oct-iostrm.cc, oct-lvalue.cc, oct-map.cc, oct-prcstrm.cc, oct-procbuf.cc, 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, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, sighandlers.cc, siglist.c, 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, __delaunayn__.cc, __eigs__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc, __init_gnuplot__.cc, __magick_read__.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, mkbuiltins, mkops, ov-base-diag.cc, ov-base-int.cc, ov-base-mat.cc, ov-base-scalar.cc, ov-base-sparse.cc, 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.cc, ovl.cc, octave.cc, 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-cell.cc, op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.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-dm.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-fdm.cc, op-fcm-fcm.cc, op-fcm-fcs.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-fdm.cc, op-float-conv.cc, op-fm-fcm.cc, op-fm-fcs.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-cm.cc, op-m-cs.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-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-os.cc, Array-sym.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, DiagArray2.cc, MArray-C.cc, MArray-d.cc, MArray-f.cc, MArray-fC.cc, MArray-i.cc, MArray-s.cc, MArray.cc, MDiagArray2.cc, MSparse-C.cc, MSparse-d.cc, MatrixType.cc, PermMatrix.cc, Range.cc, Sparse-C.cc, Sparse-b.cc, Sparse-d.cc, Sparse.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, 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, intNDArray.cc, uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc, blaswrap.c, cquit.c, f77-extern.cc, f77-fcn.c, lo-error.c, quit.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, randgamma.c, randmtzig.c, randpoisson.c, schur.cc, sparse-chol.cc, sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, svd.cc, mk-ops.awk, 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, 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-ieee.cc, lo-regexp.cc, lo-utils.cc, oct-base64.cc, oct-glob.cc, oct-inttypes.cc, oct-locbuf.cc, oct-mutex.cc, oct-rl-edit.c, oct-rl-hist.c, oct-shlib.cc, oct-sort.cc, pathsearch.cc, singleton-cleanup.cc, sparse-sort.cc, sparse-util.cc, str-vec.cc, unwind-prot.cc, url-transfer.cc, display-available.c, main-cli.cc, main-gui.cc, main.in.cc, mkoctfile.in.cc, octave-config.in.cc: Use '#include "config.h"' rather than <config.h>.
author Rik <rik@octave.org>
date Thu, 18 Feb 2016 13:34:50 -0800
parents fcac5dbbf9ed
children aba2e6293dd8
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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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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 "errwarn.h"
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38 #include "ovl.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;
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74
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75 try
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76 {
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77 tmp = lsode_fcn->do_multi_index_op (1, args);
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78 }
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79 catch (octave_execution_exception& e)
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80 {
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81 err_user_supplied_eval (e, "lsode");
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82 }
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83
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84 if (tmp.length () == 0 || ! tmp(0).is_defined ())
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85 err_user_supplied_eval ("lsode");
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86
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87 if (! warned_fcn_imaginary && tmp(0).is_complex_type ())
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88 {
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89 warning ("lsode: ignoring imaginary part returned from user-supplied function");
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90 warned_fcn_imaginary = true;
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91 }
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92
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93 retval = tmp(0).xvector_value ("lsode: expecting user supplied function to return numeric vector");
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94
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95 if (retval.is_empty ())
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96 err_user_supplied_eval ("lsode");
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97 }
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98
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99 return retval;
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100 }
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101
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102 Matrix
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103 lsode_user_jacobian (const ColumnVector& x, double t)
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104 {
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105 Matrix retval;
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106
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107 octave_value_list args;
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108 args(1) = t;
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109 args(0) = x;
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110
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111 if (lsode_jac)
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112 {
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113 octave_value_list tmp;
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114
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115 try
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116 {
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117 tmp = lsode_jac->do_multi_index_op (1, args);
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118 }
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119 catch (octave_execution_exception& e)
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120 {
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121 err_user_supplied_eval (e, "lsode");
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122 }
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123
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124 if (tmp.length () == 0 || ! tmp(0).is_defined ())
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125 err_user_supplied_eval ("lsode");
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126
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127 if (! warned_jac_imaginary && tmp(0).is_complex_type ())
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128 {
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129 warning ("lsode: ignoring imaginary part returned from user-supplied jacobian function");
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130 warned_jac_imaginary = true;
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131 }
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132
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133 retval = tmp(0).xmatrix_value ("lsode: expecting user supplied jacobian function to return numeric array");
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134
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135 if (retval.is_empty ())
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136 err_user_supplied_eval ("lsode");
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137 }
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138
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139 return retval;
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140 }
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141
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142 DEFUN (lsode, args, nargout,
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143 "-*- texinfo -*-\n\
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144 @deftypefn {} {[@var{x}, @var{istate}, @var{msg}] =} lsode (@var{fcn}, @var{x_0}, @var{t})\n\
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145 @deftypefnx {} {[@var{x}, @var{istate}, @var{msg}] =} lsode (@var{fcn}, @var{x_0}, @var{t}, @var{t_crit})\n\
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146 Ordinary Differential Equation (ODE) solver.\n\
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147 \n\
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148 The set of differential equations to solve is\n\
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149 @tex\n\
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150 $$ {dx \\over dt} = f (x, t) $$\n\
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151 with\n\
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152 $$ x(t_0) = x_0 $$\n\
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153 @end tex\n\
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154 @ifnottex\n\
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155 \n\
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156 @example\n\
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157 @group\n\
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158 dx\n\
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159 -- = f (x, t)\n\
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160 dt\n\
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161 @end group\n\
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162 @end example\n\
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163 \n\
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164 @noindent\n\
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165 with\n\
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166 \n\
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167 @example\n\
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168 x(t_0) = x_0\n\
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169 @end example\n\
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170 \n\
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171 @end ifnottex\n\
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172 The solution is returned in the matrix @var{x}, with each row\n\
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173 corresponding to an element of the vector @var{t}. The first element\n\
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174 of @var{t} should be @math{t_0} and should correspond to the initial\n\
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175 state of the system @var{x_0}, so that the first row of the output\n\
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176 is @var{x_0}.\n\
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177 \n\
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178 The first argument, @var{fcn}, is a string, inline, or function handle\n\
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179 that names the function @math{f} to call to compute the vector of right\n\
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180 hand sides for the set of equations. The function must have the form\n\
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181 \n\
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182 @example\n\
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183 @var{xdot} = f (@var{x}, @var{t})\n\
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184 @end example\n\
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185 \n\
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186 @noindent\n\
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187 in which @var{xdot} and @var{x} are vectors and @var{t} is a scalar.\n\
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188 \n\
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189 If @var{fcn} is a two-element string array or a two-element cell array\n\
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190 of strings, inline functions, or function handles, the first element names\n\
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191 the function @math{f} described above, and the second element names a\n\
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192 function to compute the Jacobian of @math{f}. The Jacobian function\n\
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193 must have the form\n\
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194 \n\
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195 @example\n\
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196 @var{jac} = j (@var{x}, @var{t})\n\
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197 @end example\n\
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198 \n\
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199 @noindent\n\
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200 in which @var{jac} is the matrix of partial derivatives\n\
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201 @tex\n\
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202 $$ J = {\\partial f_i \\over \\partial x_j} = \\left[\\matrix{\n\
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203 {\\partial f_1 \\over \\partial x_1}\n\
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204 & {\\partial f_1 \\over \\partial x_2}\n\
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205 & \\cdots\n\
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206 & {\\partial f_1 \\over \\partial x_N} \\cr\n\
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207 {\\partial f_2 \\over \\partial x_1}\n\
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208 & {\\partial f_2 \\over \\partial x_2}\n\
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209 & \\cdots\n\
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210 & {\\partial f_2 \\over \\partial x_N} \\cr\n\
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211 \\vdots & \\vdots & \\ddots & \\vdots \\cr\n\
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212 {\\partial f_3 \\over \\partial x_1}\n\
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213 & {\\partial f_3 \\over \\partial x_2}\n\
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214 & \\cdots\n\
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215 & {\\partial f_3 \\over \\partial x_N} \\cr}\\right]$$\n\
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216 @end tex\n\
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217 @ifnottex\n\
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218 \n\
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219 @example\n\
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220 @group\n\
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221 | df_1 df_1 df_1 |\n\
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222 | ---- ---- ... ---- |\n\
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223 | dx_1 dx_2 dx_N |\n\
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224 | |\n\
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225 | df_2 df_2 df_2 |\n\
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226 | ---- ---- ... ---- |\n\
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227 df_i | dx_1 dx_2 dx_N |\n\
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228 jac = ---- = | |\n\
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229 dx_j | . . . . |\n\
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230 | . . . . |\n\
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231 | . . . . |\n\
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232 | |\n\
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233 | df_N df_N df_N |\n\
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234 | ---- ---- ... ---- |\n\
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235 | dx_1 dx_2 dx_N |\n\
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236 @end group\n\
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237 @end example\n\
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238 \n\
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239 @end ifnottex\n\
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240 \n\
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241 The second and third arguments specify the initial state of the system,\n\
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242 @math{x_0}, and the initial value of the independent variable @math{t_0}.\n\
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243 \n\
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244 The fourth argument is optional, and may be used to specify a set of\n\
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245 times that the ODE solver should not integrate past. It is useful for\n\
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246 avoiding difficulties with singularities and points where there is a\n\
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247 discontinuity in the derivative.\n\
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248 \n\
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249 After a successful computation, the value of @var{istate} will be 2\n\
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250 (consistent with the Fortran version of @sc{lsode}).\n\
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251 \n\
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252 If the computation is not successful, @var{istate} will be something\n\
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253 other than 2 and @var{msg} will contain additional information.\n\
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254 \n\
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255 You can use the function @code{lsode_options} to set optional\n\
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256 parameters for @code{lsode}.\n\
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257 @seealso{daspk, dassl, dasrt}\n\
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258 @end deftypefn")
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259 {
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260 int nargin = args.length ();
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261
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262 if (nargin < 3 || nargin > 4)
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263 print_usage ();
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264
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265 warned_fcn_imaginary = false;
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266 warned_jac_imaginary = false;
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267
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268 unwind_protect frame;
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269
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270 frame.protect_var (call_depth);
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271 call_depth++;
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272
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273 if (call_depth > 1)
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274 error ("lsode: invalid recursive call");
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275
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276 std::string fcn_name, fname, jac_name, jname;
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277 lsode_fcn = 0;
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278 lsode_jac = 0;
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279
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280 octave_value f_arg = args(0);
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281
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282 if (f_arg.is_cell ())
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283 {
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284 Cell c = f_arg.cell_value ();
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285 if (c.numel () == 1)
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286 f_arg = c(0);
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287 else if (c.numel () == 2)
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288 {
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289 if (c(0).is_function_handle () || c(0).is_inline_function ())
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290 lsode_fcn = c(0).function_value ();
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291 else
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292 {
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293 fcn_name = unique_symbol_name ("__lsode_fcn__");
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294 fname = "function y = ";
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295 fname.append (fcn_name);
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296 fname.append (" (x, t) y = ");
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297 lsode_fcn = extract_function (c(0), "lsode", fcn_name, fname,
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298 "; endfunction");
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299 }
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300
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301 if (lsode_fcn)
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302 {
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303 if (c(1).is_function_handle () || c(1).is_inline_function ())
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304 lsode_jac = c(1).function_value ();
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305 else
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306 {
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307 jac_name = unique_symbol_name ("__lsode_jac__");
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308 jname = "function jac = ";
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309 jname.append (jac_name);
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310 jname.append (" (x, t) jac = ");
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311 lsode_jac = extract_function (c(1), "lsode", jac_name,
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312 jname, "; endfunction");
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313
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314 if (! lsode_jac)
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315 {
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316 if (fcn_name.length ())
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317 clear_function (fcn_name);
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318 lsode_fcn = 0;
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319 }
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320 }
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321 }
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322 }
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323 else
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324 error ("lsode: incorrect number of elements in cell array");
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325 }
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326
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327 if (! lsode_fcn && ! f_arg.is_cell ())
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328 {
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329 if (f_arg.is_function_handle () || f_arg.is_inline_function ())
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330 lsode_fcn = f_arg.function_value ();
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diff changeset
331 else
10154
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332 {
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333 switch (f_arg.rows ())
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334 {
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diff changeset
335 case 1:
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diff changeset
336 do
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337 {
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338 fcn_name = unique_symbol_name ("__lsode_fcn__");
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339 fname = "function y = ";
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340 fname.append (fcn_name);
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341 fname.append (" (x, t) y = ");
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342 lsode_fcn = extract_function (f_arg, "lsode", fcn_name,
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343 fname, "; endfunction");
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344 }
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345 while (0);
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346 break;
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347
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diff changeset
348 case 2:
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diff changeset
349 {
20990
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diff changeset
350 string_vector tmp = f_arg.string_vector_value ();
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351
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352 fcn_name = unique_symbol_name ("__lsode_fcn__");
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diff changeset
353 fname = "function y = ";
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diff changeset
354 fname.append (fcn_name);
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355 fname.append (" (x, t) y = ");
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diff changeset
356 lsode_fcn = extract_function (tmp(0), "lsode", fcn_name,
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diff changeset
357 fname, "; endfunction");
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358
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359 if (lsode_fcn)
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360 {
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361 jac_name = unique_symbol_name ("__lsode_jac__");
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diff changeset
362 jname = "function jac = ";
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363 jname.append (jac_name);
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diff changeset
364 jname.append (" (x, t) jac = ");
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John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
365 lsode_jac = extract_function (tmp(1), "lsode",
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
366 jac_name, jname,
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John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
367 "; endfunction");
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jwe
parents: 5694
diff changeset
368
20955
77f5591878bf maint: Use '! expr' rather than '!expr' to conform to coding guidelines.
Rik <rik@octave.org>
parents: 20940
diff changeset
369 if (! lsode_jac)
10154
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John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
370 {
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parents: 20785
diff changeset
371 if (fcn_name.length ())
a542a9bf177e eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
372 clear_function (fcn_name);
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John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
373 lsode_fcn = 0;
10154
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John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
374 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
375 }
20801
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parents: 20785
diff changeset
376 }
a542a9bf177e eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
377 break;
2928
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jwe
parents:
diff changeset
378
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parents: 20785
diff changeset
379 default:
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John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
380 error ("lsode: first arg should be a string or 2-element string array");
10154
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
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parents: 10066
diff changeset
381 }
40dfc0c99116 DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents: 10066
diff changeset
382 }
20801
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parents: 20785
diff changeset
383 }
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
384
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John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
385 if (! lsode_fcn)
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John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
386 error ("lsode: FCN argument is not a valid function name or handle");
20687
5f04bfc7c17a backout changeset 18f38ed43962
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parents: 20682
diff changeset
387
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parents: 20785
diff changeset
388 ColumnVector state = args(1).xvector_value ("lsode: initial state X_0 must be a vector");
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parents: 20785
diff changeset
389 ColumnVector out_times = args(2).xvector_value ("lsode: output time variable T must be a vector");
2928
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jwe
parents:
diff changeset
390
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parents: 20785
diff changeset
391 ColumnVector crit_times;
2928
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jwe
parents:
diff changeset
392
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diff changeset
393 int crit_times_set = 0;
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parents: 20785
diff changeset
394 if (nargin > 3)
a542a9bf177e eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
395 {
a542a9bf177e eliminate return statements after calls to print_usage
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diff changeset
396 crit_times = args(3).xvector_value ("lsode: list of critical times T_CRIT must be a vector");
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
397
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diff changeset
398 crit_times_set = 1;
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
399 }
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
400
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parents: 20785
diff changeset
401 double tzero = out_times (0);
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
402
20801
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parents: 20785
diff changeset
403 ODEFunc func (lsode_user_function);
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parents: 20785
diff changeset
404 if (lsode_jac)
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parents: 20785
diff changeset
405 func.set_jacobian_function (lsode_user_jacobian);
2928
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jwe
parents:
diff changeset
406
20801
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parents: 20785
diff changeset
407 LSODE ode (state, tzero, func);
3243
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe]
jwe
parents: 3131
diff changeset
408
20801
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parents: 20785
diff changeset
409 ode.set_options (lsode_opts);
3243
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jwe
parents: 3131
diff changeset
410
20801
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parents: 20785
diff changeset
411 Matrix output;
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
412 if (crit_times_set)
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
413 output = ode.integrate (out_times, crit_times);
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
414 else
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
415 output = ode.integrate (out_times);
5729
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jwe
parents: 5694
diff changeset
416
20801
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parents: 20785
diff changeset
417 if (fcn_name.length ())
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
418 clear_function (fcn_name);
a542a9bf177e eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
419 if (jac_name.length ())
a542a9bf177e eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
420 clear_function (jac_name);
3997
d4091aff6468 [project @ 2002-07-17 18:00:06 by jwe]
jwe
parents: 3991
diff changeset
421
20801
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parents: 20785
diff changeset
422 std::string msg = ode.error_message ();
a542a9bf177e eliminate return statements after calls to print_usage
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parents: 20785
diff changeset
423
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
424 octave_value_list retval (3);
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20892
diff changeset
425
20801
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parents: 20785
diff changeset
426 if (ode.integration_ok ())
a542a9bf177e eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
427 retval(0) = output;
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
428 else if (nargout < 2)
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
429 error ("lsode: %s", msg.c_str ());
20801
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parents: 20785
diff changeset
430 else
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
431 retval(0) = Matrix ();
3959
5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe]
jwe
parents: 3957
diff changeset
432
20892
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
433 retval(1) = static_cast<double> (ode.integration_state ());
c07bee629973 2015 Code Sprint: use ovl ().
Rik <rik@octave.org>
parents: 20853
diff changeset
434 retval(2) = msg;
2928
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
435
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
436 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
437 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
438
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe]
jwe
parents:
diff changeset
439 /*
7562
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parents: 7017
diff changeset
440
14501
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Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
441 ## dassl-1.m
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
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parents: 14138
diff changeset
442 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
443 ## Test lsode() function
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
444 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
445 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
446 ## Comalco Research and Technology
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
447 ## 20 May 1998
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
448 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
449 ## Problem
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
450 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
451 ## y1' = -y2, y1(0) = 1
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
452 ## y2' = y1, y2(0) = 0
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
453 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
454 ## Solution
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
455 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
456 ## y1(t) = cos(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
457 ## y2(t) = sin(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
458 ##
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
459 %!function xdot = __f (x, t)
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
460 %! xdot = [-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
461 %!endfunction
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
462 %!test
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
463 %!
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
464 %! x0 = [1; 0];
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
465 %! xdot0 = [0; 1];
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
466 %! t = (0:1:10)';
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
467 %!
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
468 %! tol = 500 * lsode_options ("relative tolerance");
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
469 %!
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
470 %! x = lsode ("__f", x0, t);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
471 %!
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
472 %! y = [cos(t), sin(t)];
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
473 %!
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
474 %! assert (x, y, tol);
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
475
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
476 %!function xdotdot = __f (x, t)
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
477 %! 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
478 %!endfunction
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
479 %!test
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
480 %!
7562
c827f5673321 move tests to individual source files
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parents: 7017
diff changeset
481 %! x0 = [1; 0];
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
482 %! t = [0; 2*pi];
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
483 %! tol = 100 * dassl_options ("relative tolerance");
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
484 %!
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
485 %! x = lsode ("__f", x0, t);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
486 %!
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
487 %! y = [1, 0; 1, 0];
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
488 %!
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
489 %! assert (x, y, tol);
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
490
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
491 %!function xdot = __f (x, t)
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
492 %! xdot = x;
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
493 %!endfunction
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
494 %!test
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
495 %!
7562
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John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
496 %! x0 = 1;
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
497 %! t = [0; 1];
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
498 %! tol = 100 * dassl_options ("relative tolerance");
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
499 %!
14085
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace
Rik <octave@nomad.inbox5.com>
parents: 13915
diff changeset
500 %! x = lsode ("__f", x0, t);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
501 %!
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
502 %! y = [1; e];
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
503 %!
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
504 %! assert (x, y, tol);
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
505
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
506 %!test
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
507 %! lsode_options ("absolute tolerance", eps);
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60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
508 %! assert (lsode_options ("absolute tolerance") == eps);
7562
c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
509
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
510 %!error lsode_options ("foo", 1, 2)
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c827f5673321 move tests to individual source files
John W. Eaton <jwe@octave.org>
parents: 7017
diff changeset
511 */