| /* specfunc/gsl_sf_trig.h |
| * |
| * Copyright (C) 1996, 1997, 1998, 1999, 2000 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_TRIG_H__ |
| #define __GSL_SF_TRIG_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 |
| |
| |
| /* Sin(x) with GSL semantics. This is actually important |
| * because we want to control the error estimate, and trying |
| * to guess the error for the standard library implementation |
| * every time it is used would be a little goofy. |
| */ |
| int gsl_sf_sin_e(double x, gsl_sf_result * result); |
| double gsl_sf_sin(const double x); |
| |
| |
| /* Cos(x) with GSL semantics. |
| */ |
| int gsl_sf_cos_e(double x, gsl_sf_result * result); |
| double gsl_sf_cos(const double x); |
| |
| |
| /* Hypot(x,y) with GSL semantics. |
| */ |
| int gsl_sf_hypot_e(const double x, const double y, gsl_sf_result * result); |
| double gsl_sf_hypot(const double x, const double y); |
| |
| |
| /* Sin(z) for complex z |
| * |
| * exceptions: GSL_EOVRFLW |
| */ |
| int gsl_sf_complex_sin_e(const double zr, const double zi, gsl_sf_result * szr, gsl_sf_result * szi); |
| |
| |
| /* Cos(z) for complex z |
| * |
| * exceptions: GSL_EOVRFLW |
| */ |
| int gsl_sf_complex_cos_e(const double zr, const double zi, gsl_sf_result * czr, gsl_sf_result * czi); |
| |
| |
| /* Log(Sin(z)) for complex z |
| * |
| * exceptions: GSL_EDOM, GSL_ELOSS |
| */ |
| int gsl_sf_complex_logsin_e(const double zr, const double zi, gsl_sf_result * lszr, gsl_sf_result * lszi); |
| |
| |
| /* Sinc(x) = sin(pi x) / (pi x) |
| * |
| * exceptions: none |
| */ |
| int gsl_sf_sinc_e(double x, gsl_sf_result * result); |
| double gsl_sf_sinc(const double x); |
| |
| |
| /* Log(Sinh(x)), x > 0 |
| * |
| * exceptions: GSL_EDOM |
| */ |
| int gsl_sf_lnsinh_e(const double x, gsl_sf_result * result); |
| double gsl_sf_lnsinh(const double x); |
| |
| |
| /* Log(Cosh(x)) |
| * |
| * exceptions: none |
| */ |
| int gsl_sf_lncosh_e(const double x, gsl_sf_result * result); |
| double gsl_sf_lncosh(const double x); |
| |
| |
| /* Convert polar to rectlinear coordinates. |
| * |
| * exceptions: GSL_ELOSS |
| */ |
| int gsl_sf_polar_to_rect(const double r, const double theta, gsl_sf_result * x, gsl_sf_result * y); |
| |
| /* Convert rectilinear to polar coordinates. |
| * return argument in range [-pi, pi] |
| * |
| * exceptions: GSL_EDOM |
| */ |
| int gsl_sf_rect_to_polar(const double x, const double y, gsl_sf_result * r, gsl_sf_result * theta); |
| |
| /* Sin(x) for quantity with an associated error. |
| */ |
| int gsl_sf_sin_err_e(const double x, const double dx, gsl_sf_result * result); |
| |
| |
| /* Cos(x) for quantity with an associated error. |
| */ |
| int gsl_sf_cos_err_e(const double x, const double dx, gsl_sf_result * result); |
| |
| |
| /* Force an angle to lie in the range (-pi,pi]. |
| * |
| * exceptions: GSL_ELOSS |
| */ |
| int gsl_sf_angle_restrict_symm_e(double * theta); |
| double gsl_sf_angle_restrict_symm(const double theta); |
| |
| |
| /* Force an angle to lie in the range [0, 2pi) |
| * |
| * exceptions: GSL_ELOSS |
| */ |
| int gsl_sf_angle_restrict_pos_e(double * theta); |
| double gsl_sf_angle_restrict_pos(const double theta); |
| |
| |
| int gsl_sf_angle_restrict_symm_err_e(const double theta, gsl_sf_result * result); |
| |
| int gsl_sf_angle_restrict_pos_err_e(const double theta, gsl_sf_result * result); |
| |
| |
| __END_DECLS |
| |
| #endif /* __GSL_SF_TRIG_H__ */ |