include/gsl/gsl_sf_debye.h

0001 /* specfunc/gsl_sf_debye.h
0002  *
0003  * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
0004  *
0005  * This program is free software; you can redistribute it and/or modify
0006  * it under the terms of the GNU General Public License as published by
0007  * the Free Software Foundation; either version 3 of the License, or (at
0008  * your option) any later version.
0009  *
0010  * This program is distributed in the hope that it will be useful, but
0011  * WITHOUT ANY WARRANTY; without even the implied warranty of
0012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0013  * General Public License for more details.
0014  *
0015  * You should have received a copy of the GNU General Public License
0016  * along with this program; if not, write to the Free Software
0017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
0018  */
0019
0020 /* Author:  G. Jungman */
0021 /* augmented by D_5(x) and D_6(x) by Richard J. Mathar, 2005-11-08 */
0022
0023 #ifndef __GSL_SF_DEBYE_H__
0024 #define __GSL_SF_DEBYE_H__
0025
0026 #include <gsl/gsl_sf_result.h>
0027
0028 #undef __BEGIN_DECLS
0029 #undef __END_DECLS
0030 #ifdef __cplusplus
0031 # define __BEGIN_DECLS extern "C" {
0032 # define __END_DECLS }
0033 #else
0034 # define __BEGIN_DECLS /* empty */
0035 # define __END_DECLS /* empty */
0036 #endif
0037
0038 __BEGIN_DECLS
0039
0040
0041 /* D_n(x) := n/x^n Integrate[t^n/(e^t - 1), {t,0,x}] */
0042
0043 /* D_1(x)
0044  *
0045  * exceptions: GSL_EDOM
0046  */
0047 int     gsl_sf_debye_1_e(const double x, gsl_sf_result * result);
0048 double     gsl_sf_debye_1(const double x);
0049
0050
0051 /* D_2(x)
0052  *
0053  * exceptions: GSL_EDOM, GSL_EUNDRFLW
0054  */
0055 int     gsl_sf_debye_2_e(const double x, gsl_sf_result * result);
0056 double     gsl_sf_debye_2(const double x);
0057
0058
0059 /* D_3(x)
0060  *
0061  * exceptions: GSL_EDOM, GSL_EUNDRFLW
0062  */
0063 int     gsl_sf_debye_3_e(const double x, gsl_sf_result * result);
0064 double     gsl_sf_debye_3(const double x);
0065
0066
0067 /* D_4(x)
0068  *
0069  * exceptions: GSL_EDOM, GSL_EUNDRFLW
0070  */
0071 int     gsl_sf_debye_4_e(const double x, gsl_sf_result * result);
0072 double     gsl_sf_debye_4(const double x);
0073
0074 /* D_5(x)
0075  *
0076  * exceptions: GSL_EDOM, GSL_EUNDRFLW
0077  */
0078 int     gsl_sf_debye_5_e(const double x, gsl_sf_result * result);
0079 double     gsl_sf_debye_5(const double x);
0080
0081 /* D_6(x)
0082  *
0083  * exceptions: GSL_EDOM, GSL_EUNDRFLW
0084  */
0085 int     gsl_sf_debye_6_e(const double x, gsl_sf_result * result);
0086 double     gsl_sf_debye_6(const double x);
0087
0088
0089 __END_DECLS
0090
0091 #endif /* __GSL_SF_DEBYE_H__ */