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/*
sf_zeta.c
Ruby/GSL: Ruby extension library for GSL (GNU Scientific Library)
(C) Copyright 2001-2006 by Yoshiki Tsunesada
Ruby/GSL is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY.
*/
#include "rb_gsl_sf.h"
static VALUE rb_gsl_sf_zeta_int(VALUE obj, VALUE n)
{
VALUE nn;
if (TYPE(n) != T_FIXNUM) nn = INT2FIX(NUM2INT(n));
else nn = n;
return rb_gsl_sf_eval1_int(gsl_sf_zeta_int, nn);
}
static VALUE rb_gsl_sf_zeta_int_e(VALUE obj, VALUE n)
{
VALUE nn;
if (TYPE(n) != T_FIXNUM) nn = INT2FIX(NUM2INT(n));
else nn = n;
return rb_gsl_sf_eval_e_int(gsl_sf_zeta_int_e, nn);
}
static VALUE rb_gsl_sf_zeta(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval1(gsl_sf_zeta, x);
}
static VALUE rb_gsl_sf_zeta_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_zeta_e, x);
}
static VALUE rb_gsl_sf_hzeta(VALUE obj, VALUE s, VALUE q)
{
Need_Float(s); Need_Float(q);
return rb_float_new(gsl_sf_hzeta(NUM2DBL(s), NUM2DBL(q)));
}
static VALUE rb_gsl_sf_hzeta_e(VALUE obj, VALUE s, VALUE q)
{
return rb_gsl_sf_eval_e_double2(gsl_sf_hzeta_e, s, q);
}
static VALUE rb_gsl_sf_eta_int(VALUE obj, VALUE n)
{
return rb_gsl_sf_eval1_int(gsl_sf_eta_int, n);
}
static VALUE rb_gsl_sf_eta_int_e(VALUE obj, VALUE n)
{
return rb_gsl_sf_eval_e_int(gsl_sf_eta_int_e, n);
}
static VALUE rb_gsl_sf_eta(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval1(gsl_sf_eta, x);
}
static VALUE rb_gsl_sf_eta_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_eta_e, x);
}
#ifdef GSL_1_4_9_LATER
static VALUE rb_gsl_sf_zetam1_int(VALUE obj, VALUE n)
{
VALUE nn;
if (TYPE(n) != T_FIXNUM) nn = INT2FIX(NUM2INT(n));
else nn = n;
return rb_gsl_sf_eval1_int(gsl_sf_zetam1_int, nn);
}
static VALUE rb_gsl_sf_zetam1_int_e(VALUE obj, VALUE n)
{
VALUE nn;
if (TYPE(n) != T_FIXNUM) nn = INT2FIX(NUM2INT(n));
else nn = n;
return rb_gsl_sf_eval_e_int(gsl_sf_zetam1_int_e, nn);
}
static VALUE rb_gsl_sf_zetam1(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval1(gsl_sf_zetam1, x);
}
static VALUE rb_gsl_sf_zetam1_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_zetam1_e, x);
}
#endif
void Init_gsl_sf_zeta(VALUE module)
{
rb_define_module_function(module, "zeta_int", rb_gsl_sf_zeta_int, 1);
rb_define_module_function(module, "zeta_int_e", rb_gsl_sf_zeta_int_e, 1);
rb_define_module_function(module, "zeta", rb_gsl_sf_zeta, 1);
rb_define_module_function(module, "zeta_e", rb_gsl_sf_zeta_e, 1);
rb_define_module_function(module, "hzeta", rb_gsl_sf_hzeta, 2);
rb_define_module_function(module, "hzeta_e", rb_gsl_sf_hzeta_e, 2);
rb_define_module_function(module, "eta_int", rb_gsl_sf_eta_int, 1);
rb_define_module_function(module, "eta_int_e", rb_gsl_sf_eta_int_e, 1);
rb_define_module_function(module, "eta", rb_gsl_sf_eta, 1);
rb_define_module_function(module, "eta_e", rb_gsl_sf_eta_e, 1);
#ifdef GSL_1_4_9_LATER
rb_define_module_function(module, "zetam1_int", rb_gsl_sf_zetam1_int, 1);
rb_define_module_function(module, "zetam1_int_e", rb_gsl_sf_zetam1_int_e, 1);
rb_define_module_function(module, "zetam1", rb_gsl_sf_zetam1, 1);
rb_define_module_function(module, "zetam1_e", rb_gsl_sf_zetam1_e, 1);
#endif
}
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