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[project @ 1993-08-08 01:20:23 by jwe] Initial revision
author jwe
date Sun, 08 Aug 1993 01:21:46 +0000
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children 780cbbc57b7c
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2:c0190df9885d 3:9a4c07481e61
1 // DAE.h -*- C++ -*-
2 /*
3
4 Copyright (C) 1992, 1993 John W. Eaton
5
6 This file is part of Octave.
7
8 Octave is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
11 later version.
12
13 Octave is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with Octave; see the file COPYING. If not, write to the Free
20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
21
22 */
23
24 #if !defined (_DAE_h)
25 #define _DAE_h 1
26
27 #ifdef __GNUG__
28 #pragma interface
29 #endif
30
31 #include <iostream.h>
32 #include "ODE.h"
33 #include "DAEFunc.h"
34 #include "Matrix.h"
35 #include "f77-uscore.h"
36
37 #ifndef Vector
38 #define Vector ColumnVector
39 #endif
40
41 class DAE : public ODE, public DAEFunc
42 {
43 public:
44
45 DAE (void);
46
47 DAE (int);
48
49 DAE (Vector& x, double time, DAEFunc& f);
50
51 DAE (Vector& x, Vector& xdot, double time, DAEFunc& f);
52
53 ~DAE (void);
54
55 Vector deriv (void);
56
57 virtual void initialize (Vector& x, double t);
58 virtual void initialize (Vector& x, Vector& xdot, double t);
59
60 Vector integrate (double t);
61
62 Matrix integrate (const Vector& tout, Matrix& xdot_out);
63 Matrix integrate (const Vector& tout, Matrix& xdot_out,
64 const Vector& tcrit);
65
66 protected:
67
68 /*
69 * Some of this is probably too closely related to DASSL, but hey,
70 * this is just a first attempt...
71 */
72
73 Vector xdot;
74
75 private:
76
77 int restart;
78 int liw;
79 int lrw;
80 int idid;
81 int *info;
82 int *iwork;
83 double *rwork;
84
85 friend int ddassl_j (double *time, double *state, double *deriv,
86 double *pd, double *cj, double *rpar, int *ipar);
87
88 friend int ddassl_f (double *time, double *state, double *deriv,
89 double *delta, int *ires, double *rpar, int *ipar);
90
91 };
92
93 #endif