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- /* specfunc/gsl_sf_exp.h
- *
- * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2004 Gerard Jungman
- *
- * 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 3 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.
- */
- /* Author: G. Jungman */
- #ifndef __GSL_SF_EXP_H__
- #define __GSL_SF_EXP_H__
- #include "gsl_sf_result.h"
- #include "gsl_precision.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
- /* Provide an exp() function with GSL semantics,
- * i.e. with proper error checking, etc.
- *
- * exceptions: GSL_EOVRFLW, GSL_EUNDRFLW
- */
- int gsl_sf_exp_e(const double x, gsl_sf_result * result);
- double gsl_sf_exp(const double x);
- /* Exp(x)
- *
- * exceptions: GSL_EOVRFLW, GSL_EUNDRFLW
- */
- int gsl_sf_exp_e10_e(const double x, gsl_sf_result_e10 * result);
- /* Exponentiate and multiply by a given factor: y * Exp(x)
- *
- * exceptions: GSL_EOVRFLW, GSL_EUNDRFLW
- */
- int gsl_sf_exp_mult_e(const double x, const double y, gsl_sf_result * result);
- double gsl_sf_exp_mult(const double x, const double y);
- /* Exponentiate and multiply by a given factor: y * Exp(x)
- *
- * exceptions: GSL_EOVRFLW, GSL_EUNDRFLW
- */
- int gsl_sf_exp_mult_e10_e(const double x, const double y, gsl_sf_result_e10 * result);
- /* exp(x)-1
- *
- * exceptions: GSL_EOVRFLW
- */
- int gsl_sf_expm1_e(const double x, gsl_sf_result * result);
- double gsl_sf_expm1(const double x);
- /* (exp(x)-1)/x = 1 + x/2 + x^2/(2*3) + x^3/(2*3*4) + ...
- *
- * exceptions: GSL_EOVRFLW
- */
- int gsl_sf_exprel_e(const double x, gsl_sf_result * result);
- double gsl_sf_exprel(const double x);
- /* 2(exp(x)-1-x)/x^2 = 1 + x/3 + x^2/(3*4) + x^3/(3*4*5) + ...
- *
- * exceptions: GSL_EOVRFLW
- */
- int gsl_sf_exprel_2_e(double x, gsl_sf_result * result);
- double gsl_sf_exprel_2(const double x);
- /* Similarly for the N-th generalization of
- * the above. The so-called N-relative exponential
- *
- * exprel_N(x) = N!/x^N (exp(x) - Sum[x^k/k!, {k,0,N-1}])
- * = 1 + x/(N+1) + x^2/((N+1)(N+2)) + ...
- * = 1F1(1,1+N,x)
- */
- int gsl_sf_exprel_n_e(const int n, const double x, gsl_sf_result * result);
- double gsl_sf_exprel_n(const int n, const double x);
- /* Exponentiate a quantity with an associated error.
- */
- int gsl_sf_exp_err_e(const double x, const double dx, gsl_sf_result * result);
- /* Exponentiate a quantity with an associated error.
- */
- int gsl_sf_exp_err_e10_e(const double x, const double dx, gsl_sf_result_e10 * result);
- /* Exponentiate and multiply by a given factor: y * Exp(x),
- * for quantities with associated errors.
- *
- * exceptions: GSL_EOVRFLW, GSL_EUNDRFLW
- */
- int gsl_sf_exp_mult_err_e(const double x, const double dx, const double y, const double dy, gsl_sf_result * result);
- /* Exponentiate and multiply by a given factor: y * Exp(x),
- * for quantities with associated errors.
- *
- * exceptions: GSL_EOVRFLW, GSL_EUNDRFLW
- */
- int gsl_sf_exp_mult_err_e10_e(const double x, const double dx, const double y, const double dy, gsl_sf_result_e10 * result);
- __END_DECLS
- #endif /* __GSL_SF_EXP_H__ */
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