diff options
Diffstat (limited to '2.3-1/thirdparty/includes/GSL/gsl/gsl_sf_log.h')
-rw-r--r-- | 2.3-1/thirdparty/includes/GSL/gsl/gsl_sf_log.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/2.3-1/thirdparty/includes/GSL/gsl/gsl_sf_log.h b/2.3-1/thirdparty/includes/GSL/gsl/gsl_sf_log.h new file mode 100644 index 00000000..92aa6857 --- /dev/null +++ b/2.3-1/thirdparty/includes/GSL/gsl/gsl_sf_log.h @@ -0,0 +1,82 @@ +/* specfunc/gsl_sf_log.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_LOG_H__ +#define __GSL_SF_LOG_H__ + +#include <gsl/gsl_sf_result.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 a logarithm function with GSL semantics. + * + * exceptions: GSL_EDOM + */ +int gsl_sf_log_e(const double x, gsl_sf_result * result); +double gsl_sf_log(const double x); + + +/* Log(|x|) + * + * exceptions: GSL_EDOM + */ +int gsl_sf_log_abs_e(const double x, gsl_sf_result * result); +double gsl_sf_log_abs(const double x); + + +/* Complex Logarithm + * exp(lnr + I theta) = zr + I zi + * Returns argument in [-pi,pi]. + * + * exceptions: GSL_EDOM + */ +int gsl_sf_complex_log_e(const double zr, const double zi, gsl_sf_result * lnr, gsl_sf_result * theta); + + +/* Log(1 + x) + * + * exceptions: GSL_EDOM + */ +int gsl_sf_log_1plusx_e(const double x, gsl_sf_result * result); +double gsl_sf_log_1plusx(const double x); + + +/* Log(1 + x) - x + * + * exceptions: GSL_EDOM + */ +int gsl_sf_log_1plusx_mx_e(const double x, gsl_sf_result * result); +double gsl_sf_log_1plusx_mx(const double x); + +__END_DECLS + +#endif /* __GSL_SF_LOG_H__ */ |