diff options
Diffstat (limited to 'gsl-1.9/specfunc/gsl_sf_coupling.h')
| -rw-r--r-- | gsl-1.9/specfunc/gsl_sf_coupling.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/gsl-1.9/specfunc/gsl_sf_coupling.h b/gsl-1.9/specfunc/gsl_sf_coupling.h new file mode 100644 index 0000000..cb2e0f6 --- /dev/null +++ b/gsl-1.9/specfunc/gsl_sf_coupling.h @@ -0,0 +1,125 @@ +/* specfunc/gsl_sf_coupling.h + * + * Copyright (C) 1996,1997,1998,1999,2000,2001,2002 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_COUPLING_H__ +#define __GSL_SF_COUPLING_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 + + +/* 3j Symbols: / ja jb jc \ + * \ ma mb mc / + * + * exceptions: GSL_EDOM, GSL_EOVRFLW + */ +int gsl_sf_coupling_3j_e(int two_ja, int two_jb, int two_jc, + int two_ma, int two_mb, int two_mc, + gsl_sf_result * result + ); +double gsl_sf_coupling_3j(int two_ja, int two_jb, int two_jc, + int two_ma, int two_mb, int two_mc + ); + + +/* 6j Symbols: / ja jb jc \ + * \ jd je jf / + * + * exceptions: GSL_EDOM, GSL_EOVRFLW + */ +int gsl_sf_coupling_6j_e(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf, + gsl_sf_result * result + ); +double gsl_sf_coupling_6j(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf + ); + +/* Racah W coefficients: + * + * W(a b c d; e f) = (-1)^{a+b+c+d} / a b e \ + * \ d c f / + * + * exceptions: GSL_EDOM, GSL_EOVRFLW + */ +int gsl_sf_coupling_RacahW_e(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf, + gsl_sf_result * result + ); +double gsl_sf_coupling_RacahW(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf + ); + + +/* 9j Symbols: / ja jb jc \ + * | jd je jf | + * \ jg jh ji / + * + * exceptions: GSL_EDOM, GSL_EOVRFLW + */ +int gsl_sf_coupling_9j_e(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf, + int two_jg, int two_jh, int two_ji, + gsl_sf_result * result + ); +double gsl_sf_coupling_9j(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf, + int two_jg, int two_jh, int two_ji + ); + + +/* INCORRECT version of 6j Symbols: + * This function actually calculates + * / ja jb je \ + * \ jd jc jf / + * It represents the original implementation, + * which had the above permutation of the + * arguments. This was wrong and confusing, + * and I had to fix it. Sorry for the trouble. + * [GJ] Tue Nov 26 12:53:39 MST 2002 + * + * exceptions: GSL_EDOM, GSL_EOVRFLW + */ +#ifndef GSL_DISABLE_DEPRECATED +int gsl_sf_coupling_6j_INCORRECT_e(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf, + gsl_sf_result * result + ); +double gsl_sf_coupling_6j_INCORRECT(int two_ja, int two_jb, int two_jc, + int two_jd, int two_je, int two_jf + ); +#endif /* !GSL_DISABLE_DEPRECATED */ + + +__END_DECLS + +#endif /* __GSL_SF_COUPLING_H__ */ |