diff liboctave/ODE.h @ 3:9a4c07481e61

[project @ 1993-08-08 01:20:23 by jwe] Initial revision
author jwe
date Sun, 08 Aug 1993 01:21:46 +0000
parents
children 780cbbc57b7c
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/liboctave/ODE.h	Sun Aug 08 01:21:46 1993 +0000
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+// ODE.h                                                -*- C++ -*-
+/*
+
+Copyright (C) 1992, 1993 John W. Eaton
+
+This file is part of Octave.
+
+Octave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+Octave is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#if !defined (_ODE_h)
+#define _ODE_h 1
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+#include <iostream.h>
+#include "ODEFunc.h"
+#include "Matrix.h"
+
+class ODE : public ODEFunc
+{
+public:
+
+  ODE (void);
+
+  ODE (int n);
+  
+  ODE (const ColumnVector& state, double time, const ODEFunc& f);
+
+  virtual ~ODE (void);
+
+  virtual int size (void) const;
+  virtual ColumnVector state (void) const;
+  virtual double time (void) const;
+
+  virtual void force_restart (void);
+  virtual void initialize (const ColumnVector& x, double t);
+  virtual void set_stop_time (double t);
+  virtual void clear_stop_time (void);
+
+  virtual ColumnVector integrate (double t);
+
+  void integrate (int nsteps, double tstep, ostream& s);
+
+  Matrix integrate (const ColumnVector& tout);
+  Matrix integrate (const ColumnVector& tout, const ColumnVector& tcrit);
+
+protected:
+
+/*
+ * Some of this is probably too closely related to LSODE, but hey,
+ * this is just a first attempt...
+ */
+
+  int n;
+  double t;
+  ColumnVector x;
+
+  double absolute_tolerance;
+  double relative_tolerance;
+
+  double stop_time;
+  int stop_time_set;
+
+private:
+
+  int restart;
+  int method_flag;
+  int *iwork;
+  double *rwork;
+  int istate;
+  int itol;
+  int itask;
+  int iopt;
+  int liw;
+  int lrw;
+
+  friend int lsode_f (int *neq, double *t, double *y, double *ydot);
+
+  friend int lsode_j (int *neq, double *t, double *y, int *ml, int *mu,
+		      double *pd, int *nrowpd);
+
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; page-delimiter: "^/\\*" ***
+;;; End: ***
+*/