| /* roots/gsl_roots.h |
| * |
| * Copyright (C) 1996, 1997, 1998, 1999, 2000 Reid Priedhorsky, Brian Gough |
| * |
| * This program 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 of the License, or (at |
| * your option) any later version. |
| * |
| * This program 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 this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef __GSL_ROOTS_H__ |
| #define __GSL_ROOTS_H__ |
| |
| #include <stdlib.h> |
| #include <gsl/gsl_types.h> |
| #include <gsl/gsl_math.h> |
| |
| #undef __BEGIN_DECLS |
| #undef __END_DECLS |
| #ifdef __cplusplus |
| # define __BEGIN_DECLS extern "C" { |
| # define __END_DECLS } |
| #else |
| # define __BEGIN_DECLS /* empty */ |
| # define __END_DECLS /* empty */ |
| #endif |
| |
| __BEGIN_DECLS |
| |
| typedef struct |
| { |
| const char *name; |
| size_t size; |
| int (*set) (void *state, gsl_function * f, double * root, double x_lower, double x_upper); |
| int (*iterate) (void *state, gsl_function * f, double * root, double * x_lower, double * x_upper); |
| } |
| gsl_root_fsolver_type; |
| |
| typedef struct |
| { |
| const gsl_root_fsolver_type * type; |
| gsl_function * function ; |
| double root ; |
| double x_lower; |
| double x_upper; |
| void *state; |
| } |
| gsl_root_fsolver; |
| |
| typedef struct |
| { |
| const char *name; |
| size_t size; |
| int (*set) (void *state, gsl_function_fdf * f, double * root); |
| int (*iterate) (void *state, gsl_function_fdf * f, double * root); |
| } |
| gsl_root_fdfsolver_type; |
| |
| typedef struct |
| { |
| const gsl_root_fdfsolver_type * type; |
| gsl_function_fdf * fdf ; |
| double root ; |
| void *state; |
| } |
| gsl_root_fdfsolver; |
| |
| gsl_root_fsolver * |
| gsl_root_fsolver_alloc (const gsl_root_fsolver_type * T); |
| void gsl_root_fsolver_free (gsl_root_fsolver * s); |
| |
| int gsl_root_fsolver_set (gsl_root_fsolver * s, |
| gsl_function * f, |
| double x_lower, double x_upper); |
| |
| int gsl_root_fsolver_iterate (gsl_root_fsolver * s); |
| |
| const char * gsl_root_fsolver_name (const gsl_root_fsolver * s); |
| double gsl_root_fsolver_root (const gsl_root_fsolver * s); |
| double gsl_root_fsolver_x_lower (const gsl_root_fsolver * s); |
| double gsl_root_fsolver_x_upper (const gsl_root_fsolver * s); |
| |
| |
| gsl_root_fdfsolver * |
| gsl_root_fdfsolver_alloc (const gsl_root_fdfsolver_type * T); |
| |
| int |
| gsl_root_fdfsolver_set (gsl_root_fdfsolver * s, |
| gsl_function_fdf * fdf, double root); |
| |
| int |
| gsl_root_fdfsolver_iterate (gsl_root_fdfsolver * s); |
| |
| void |
| gsl_root_fdfsolver_free (gsl_root_fdfsolver * s); |
| |
| const char * gsl_root_fdfsolver_name (const gsl_root_fdfsolver * s); |
| double gsl_root_fdfsolver_root (const gsl_root_fdfsolver * s); |
| |
| int |
| gsl_root_test_interval (double x_lower, double x_upper, double epsabs, double epsrel); |
| |
| int |
| gsl_root_test_residual (double f, double epsabs); |
| |
| int |
| gsl_root_test_delta (double x1, double x0, double epsabs, double epsrel); |
| |
| GSL_VAR const gsl_root_fsolver_type * gsl_root_fsolver_bisection; |
| GSL_VAR const gsl_root_fsolver_type * gsl_root_fsolver_brent; |
| GSL_VAR const gsl_root_fsolver_type * gsl_root_fsolver_falsepos; |
| GSL_VAR const gsl_root_fdfsolver_type * gsl_root_fdfsolver_newton; |
| GSL_VAR const gsl_root_fdfsolver_type * gsl_root_fdfsolver_secant; |
| GSL_VAR const gsl_root_fdfsolver_type * gsl_root_fdfsolver_steffenson; |
| |
| __END_DECLS |
| |
| #endif /* __GSL_ROOTS_H__ */ |