126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
/* specfunc/gsl_sf_coupling.h
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*
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* Copyright (C) 1996,1997,1998,1999,2000,2001,2002 Gerard Jungman
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/* Author: G. Jungman */
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#ifndef __GSL_SF_COUPLING_H__
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#define __GSL_SF_COUPLING_H__
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#include <gsl/gsl_sf_result.h>
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#undef __BEGIN_DECLS
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#undef __END_DECLS
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#ifdef __cplusplus
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# define __BEGIN_DECLS extern "C" {
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# define __END_DECLS }
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#else
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# define __BEGIN_DECLS /* empty */
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# define __END_DECLS /* empty */
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#endif
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__BEGIN_DECLS
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/* 3j Symbols: / ja jb jc \
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* \ ma mb mc /
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*
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* exceptions: GSL_EDOM, GSL_EOVRFLW
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*/
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int gsl_sf_coupling_3j_e(int two_ja, int two_jb, int two_jc,
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int two_ma, int two_mb, int two_mc,
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gsl_sf_result * result
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);
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double gsl_sf_coupling_3j(int two_ja, int two_jb, int two_jc,
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int two_ma, int two_mb, int two_mc
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);
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/* 6j Symbols: / ja jb jc \
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* \ jd je jf /
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*
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* exceptions: GSL_EDOM, GSL_EOVRFLW
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*/
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int gsl_sf_coupling_6j_e(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf,
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gsl_sf_result * result
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);
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double gsl_sf_coupling_6j(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf
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);
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/* Racah W coefficients:
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*
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* W(a b c d; e f) = (-1)^{a+b+c+d} / a b e \
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* \ d c f /
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*
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* exceptions: GSL_EDOM, GSL_EOVRFLW
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*/
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int gsl_sf_coupling_RacahW_e(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf,
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gsl_sf_result * result
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);
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double gsl_sf_coupling_RacahW(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf
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);
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/* 9j Symbols: / ja jb jc \
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* | jd je jf |
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* \ jg jh ji /
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*
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* exceptions: GSL_EDOM, GSL_EOVRFLW
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*/
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int gsl_sf_coupling_9j_e(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf,
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int two_jg, int two_jh, int two_ji,
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gsl_sf_result * result
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);
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double gsl_sf_coupling_9j(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf,
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int two_jg, int two_jh, int two_ji
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);
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/* INCORRECT version of 6j Symbols:
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* This function actually calculates
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* / ja jb je \
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* \ jd jc jf /
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* It represents the original implementation,
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* which had the above permutation of the
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* arguments. This was wrong and confusing,
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* and I had to fix it. Sorry for the trouble.
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* [GJ] Tue Nov 26 12:53:39 MST 2002
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*
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* exceptions: GSL_EDOM, GSL_EOVRFLW
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*/
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#ifndef GSL_DISABLE_DEPRECATED
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int gsl_sf_coupling_6j_INCORRECT_e(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf,
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gsl_sf_result * result
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);
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double gsl_sf_coupling_6j_INCORRECT(int two_ja, int two_jb, int two_jc,
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int two_jd, int two_je, int two_jf
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);
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#endif /* !GSL_DISABLE_DEPRECATED */
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__END_DECLS
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#endif /* __GSL_SF_COUPLING_H__ */
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