From c99b8fd6e3f8a2fb365ec12baf838f864b118ece Mon Sep 17 00:00:00 2001 From: Alberto Ruiz Date: Mon, 1 Oct 2007 15:04:16 +0000 Subject: LinearAlgebra and GSL moved to Numeric --- lib/Numeric/GSL/Special/gsl_sf_exp.h | 146 +++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 lib/Numeric/GSL/Special/gsl_sf_exp.h (limited to 'lib/Numeric/GSL/Special/gsl_sf_exp.h') diff --git a/lib/Numeric/GSL/Special/gsl_sf_exp.h b/lib/Numeric/GSL/Special/gsl_sf_exp.h new file mode 100644 index 0000000..b1f0d89 --- /dev/null +++ b/lib/Numeric/GSL/Special/gsl_sf_exp.h @@ -0,0 +1,146 @@ +/* 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 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. + */ + +/* Author: G. Jungman */ + +#ifndef __GSL_SF_EXP_H__ +#define __GSL_SF_EXP_H__ + +#include +#include + +#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 + + +#ifdef HAVE_INLINE +#include +#include + +__BEGIN_DECLS + + + +__END_DECLS + +#endif /* HAVE_INLINE */ + + +#endif /* __GSL_SF_EXP_H__ */ -- cgit v1.2.3