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/* roots/gsl_roots.h
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*
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* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Reid Priedhorsky, Brian Gough
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __GSL_ROOTS_H__
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#define __GSL_ROOTS_H__
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#include <stdlib.h>
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#include <gsl/gsl_types.h>
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#include <gsl/gsl_math.h>
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#undef __BEGIN_DECLS
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#undef __END_DECLS
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#ifdef __cplusplus
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# define __BEGIN_DECLS extern "C" {
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# define __END_DECLS }
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#else
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# define __BEGIN_DECLS /* empty */
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# define __END_DECLS /* empty */
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#endif
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__BEGIN_DECLS
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typedef struct
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{
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const char *name;
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size_t size;
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int (*set) (void *state, gsl_function * f, double * root, double x_lower, double x_upper);
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int (*iterate) (void *state, gsl_function * f, double * root, double * x_lower, double * x_upper);
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}
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gsl_root_fsolver_type;
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typedef struct
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{
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const gsl_root_fsolver_type * type;
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gsl_function * function ;
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double root ;
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double x_lower;
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double x_upper;
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void *state;
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}
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gsl_root_fsolver;
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typedef struct
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{
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const char *name;
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size_t size;
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int (*set) (void *state, gsl_function_fdf * f, double * root);
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int (*iterate) (void *state, gsl_function_fdf * f, double * root);
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}
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gsl_root_fdfsolver_type;
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typedef struct
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{
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const gsl_root_fdfsolver_type * type;
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gsl_function_fdf * fdf ;
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double root ;
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void *state;
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}
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gsl_root_fdfsolver;
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gsl_root_fsolver *
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gsl_root_fsolver_alloc (const gsl_root_fsolver_type * T);
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void gsl_root_fsolver_free (gsl_root_fsolver * s);
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int gsl_root_fsolver_set (gsl_root_fsolver * s,
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gsl_function * f,
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double x_lower, double x_upper);
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int gsl_root_fsolver_iterate (gsl_root_fsolver * s);
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const char * gsl_root_fsolver_name (const gsl_root_fsolver * s);
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double gsl_root_fsolver_root (const gsl_root_fsolver * s);
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double gsl_root_fsolver_x_lower (const gsl_root_fsolver * s);
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double gsl_root_fsolver_x_upper (const gsl_root_fsolver * s);
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gsl_root_fdfsolver *
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gsl_root_fdfsolver_alloc (const gsl_root_fdfsolver_type * T);
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int
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gsl_root_fdfsolver_set (gsl_root_fdfsolver * s,
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gsl_function_fdf * fdf, double root);
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int
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gsl_root_fdfsolver_iterate (gsl_root_fdfsolver * s);
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void
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gsl_root_fdfsolver_free (gsl_root_fdfsolver * s);
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const char * gsl_root_fdfsolver_name (const gsl_root_fdfsolver * s);
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double gsl_root_fdfsolver_root (const gsl_root_fdfsolver * s);
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int
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gsl_root_test_interval (double x_lower, double x_upper, double epsabs, double epsrel);
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int
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gsl_root_test_residual (double f, double epsabs);
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int
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gsl_root_test_delta (double x1, double x0, double epsabs, double epsrel);
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GSL_VAR const gsl_root_fsolver_type * gsl_root_fsolver_bisection;
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GSL_VAR const gsl_root_fsolver_type * gsl_root_fsolver_brent;
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GSL_VAR const gsl_root_fsolver_type * gsl_root_fsolver_falsepos;
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GSL_VAR const gsl_root_fdfsolver_type * gsl_root_fdfsolver_newton;
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GSL_VAR const gsl_root_fdfsolver_type * gsl_root_fdfsolver_secant;
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GSL_VAR const gsl_root_fdfsolver_type * gsl_root_fdfsolver_steffenson;
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__END_DECLS
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#endif /* __GSL_ROOTS_H__ */
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