1 /* specfunc/gsl_sf_laguerre.h
3 * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or (at
8 * your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 /* Author: G. Jungman */
22 #ifndef __GSL_SF_LAGUERRE_H__
23 #define __GSL_SF_LAGUERRE_H__
25 #include <gsl/gsl_sf_result.h>
30 # define __BEGIN_DECLS extern "C" {
31 # define __END_DECLS }
33 # define __BEGIN_DECLS /* empty */
34 # define __END_DECLS /* empty */
40 /* L^a_n(x) = (a+1)_n / n! 1F1(-n,a+1,x) */
43 /* Evaluate generalized Laguerre polynomials
44 * using explicit representations.
48 int gsl_sf_laguerre_1_e(const double a, const double x, gsl_sf_result * result);
49 int gsl_sf_laguerre_2_e(const double a, const double x, gsl_sf_result * result);
50 int gsl_sf_laguerre_3_e(const double a, const double x, gsl_sf_result * result);
51 double gsl_sf_laguerre_1(double a, double x);
52 double gsl_sf_laguerre_2(double a, double x);
53 double gsl_sf_laguerre_3(double a, double x);
56 /* Evaluate generalized Laguerre polynomials.
60 * exceptions: GSL_EDOM
62 int gsl_sf_laguerre_n_e(const int n, const double a, const double x, gsl_sf_result * result);
63 double gsl_sf_laguerre_n(int n, double a, double x);
68 #endif /* __GSL_SF_LAGUERRE_H__ */