1 | /* min/gsl_min.h |
2 | * |
3 | * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007, 2009 Brian Gough |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 3 of the License, or (at |
8 | * your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
18 | */ |
19 | |
20 | #ifndef __GSL_MIN_H__ |
21 | #define __GSL_MIN_H__ |
22 | |
23 | #include <stdlib.h> |
24 | #include <gsl/gsl_types.h> |
25 | #include <gsl/gsl_math.h> |
26 | |
27 | #undef __BEGIN_DECLS |
28 | #undef __END_DECLS |
29 | #ifdef __cplusplus |
30 | # define __BEGIN_DECLS extern "C" { |
31 | # define __END_DECLS } |
32 | #else |
33 | # define __BEGIN_DECLS /* empty */ |
34 | # define __END_DECLS /* empty */ |
35 | #endif |
36 | |
37 | __BEGIN_DECLS |
38 | |
39 | typedef struct |
40 | { |
41 | const char *name; |
42 | size_t size; |
43 | int (*set) (void *state, gsl_function * f, double x_minimum, double f_minimum, double x_lower, double f_lower, double x_upper, double f_upper); |
44 | int (*iterate) (void *state, gsl_function * f, double * x_minimum, double * f_minimum, double * x_lower, double * f_lower, double * x_upper, double * f_upper); |
45 | } |
46 | gsl_min_fminimizer_type; |
47 | |
48 | typedef struct |
49 | { |
50 | const gsl_min_fminimizer_type * type; |
51 | gsl_function * function ; |
52 | double x_minimum ; |
53 | double x_lower ; |
54 | double x_upper ; |
55 | double f_minimum, f_lower, f_upper; |
56 | void *state; |
57 | } |
58 | gsl_min_fminimizer; |
59 | |
60 | gsl_min_fminimizer * |
61 | gsl_min_fminimizer_alloc (const gsl_min_fminimizer_type * T) ; |
62 | |
63 | void gsl_min_fminimizer_free (gsl_min_fminimizer * s); |
64 | |
65 | int gsl_min_fminimizer_set (gsl_min_fminimizer * s, |
66 | gsl_function * f, double x_minimum, |
67 | double x_lower, double x_upper); |
68 | |
69 | int gsl_min_fminimizer_set_with_values (gsl_min_fminimizer * s, |
70 | gsl_function * f, |
71 | double x_minimum, double f_minimum, |
72 | double x_lower, double f_lower, |
73 | double x_upper, double f_upper); |
74 | |
75 | int gsl_min_fminimizer_iterate (gsl_min_fminimizer * s); |
76 | |
77 | const char * gsl_min_fminimizer_name (const gsl_min_fminimizer * s); |
78 | |
79 | double gsl_min_fminimizer_x_minimum (const gsl_min_fminimizer * s); |
80 | double gsl_min_fminimizer_x_lower (const gsl_min_fminimizer * s); |
81 | double gsl_min_fminimizer_x_upper (const gsl_min_fminimizer * s); |
82 | double gsl_min_fminimizer_f_minimum (const gsl_min_fminimizer * s); |
83 | double gsl_min_fminimizer_f_lower (const gsl_min_fminimizer * s); |
84 | double gsl_min_fminimizer_f_upper (const gsl_min_fminimizer * s); |
85 | |
86 | /* Deprecated, use x_minimum instead */ |
87 | double gsl_min_fminimizer_minimum (const gsl_min_fminimizer * s); |
88 | |
89 | int |
90 | gsl_min_test_interval (double x_lower, double x_upper, double epsabs, double epsrel); |
91 | |
92 | GSL_VAR const gsl_min_fminimizer_type * gsl_min_fminimizer_goldensection; |
93 | GSL_VAR const gsl_min_fminimizer_type * gsl_min_fminimizer_brent; |
94 | GSL_VAR const gsl_min_fminimizer_type * gsl_min_fminimizer_quad_golden; |
95 | |
96 | typedef |
97 | int (*gsl_min_bracketing_function)(gsl_function *f, |
98 | double *x_minimum,double * f_minimum, |
99 | double *x_lower, double * f_lower, |
100 | double *x_upper, double * f_upper, |
101 | size_t eval_max); |
102 | |
103 | int |
104 | gsl_min_find_bracket(gsl_function *f,double *x_minimum,double * f_minimum, |
105 | double *x_lower, double * f_lower, |
106 | double *x_upper, double * f_upper, |
107 | size_t eval_max); |
108 | |
109 | __END_DECLS |
110 | |
111 | #endif /* __GSL_MIN_H__ */ |
112 | |