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/*
sf_exp.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; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "rb_gsl_sf.h"
static VALUE rb_gsl_sf_exp(VALUE obj, VALUE x)
{
if (COMPLEX_P(x) || VECTOR_COMPLEX_P(x) || MATRIX_COMPLEX_P(x)) {
return rb_gsl_math_complex_eval(gsl_complex_exp, x);
} else {
return rb_gsl_sf_eval1(gsl_sf_exp, x);
}
}
static VALUE rb_gsl_sf_exp_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_exp_e, x);
}
static VALUE rb_gsl_sf_exp_e10_e(VALUE obj, VALUE x)
{
gsl_sf_result_e10 *rslt = NULL;
VALUE v;
// local variable "status" declared and set, but never used
//int status;
Need_Float(x);
v = Data_Make_Struct(cgsl_sf_result_e10, gsl_sf_result_e10, 0, free, rslt);
/*status =*/ gsl_sf_exp_e10_e(NUM2DBL(x), rslt);
return v;
}
static VALUE rb_gsl_sf_exp_mult(VALUE obj, VALUE x, VALUE y)
{
Need_Float(x); Need_Float(y);
return rb_float_new(gsl_sf_exp_mult(NUM2DBL(x), NUM2DBL(y)));
}
static VALUE rb_gsl_sf_exp_mult_e(VALUE obj, VALUE x, VALUE y)
{
return rb_gsl_sf_eval_e_double2(gsl_sf_exp_mult_e, x, y);
}
static VALUE rb_gsl_sf_exp_mult_e10_e(VALUE obj, VALUE x, VALUE y)
{
gsl_sf_result_e10 *rslt = NULL;
VALUE v;
// local variable "status" declared and set, but never used
//int status;
Need_Float(x); Need_Float(y);
v = Data_Make_Struct(cgsl_sf_result_e10, gsl_sf_result_e10, 0, free, rslt);
/*status =*/ gsl_sf_exp_mult_e10_e(NUM2DBL(x), NUM2DBL(y), rslt);
return v;
}
static VALUE rb_gsl_sf_expm1(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval1(gsl_sf_expm1, x);
}
static VALUE rb_gsl_sf_expm1_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_expm1_e, x);
}
static VALUE rb_gsl_sf_exprel(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval1(gsl_sf_exprel, x);
}
static VALUE rb_gsl_sf_exprel_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_exprel_e, x);
}
static VALUE rb_gsl_sf_exprel_2(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval1(gsl_sf_exprel_2, x);
}
static VALUE rb_gsl_sf_exprel_2_e(VALUE obj, VALUE x)
{
return rb_gsl_sf_eval_e(gsl_sf_exprel_2_e, x);
}
static VALUE rb_gsl_sf_exprel_n(VALUE obj, VALUE n, VALUE x)
{
return rb_gsl_sf_eval_int_double(gsl_sf_exprel_n, n, x);
}
static VALUE rb_gsl_sf_exprel_n_e(VALUE obj, VALUE n, VALUE x)
{
return rb_gsl_sf_eval_e_int_double(gsl_sf_exprel_n_e, n, x);
}
static VALUE rb_gsl_sf_exp_err_e(VALUE obj, VALUE x, VALUE dx)
{
return rb_gsl_sf_eval_e_double2(gsl_sf_exp_err_e, x, dx);
}
static VALUE rb_gsl_sf_exp_err_e10_e(VALUE obj, VALUE x, VALUE dx)
{
gsl_sf_result_e10 *rslt = NULL;
VALUE v;
// local variable "status" declared and set, but never used
//int status;
Need_Float(x); Need_Float(dx);
v = Data_Make_Struct(cgsl_sf_result_e10, gsl_sf_result_e10, 0, free, rslt);
/*status =*/ gsl_sf_exp_err_e10_e(NUM2DBL(x), NUM2DBL(dx), rslt);
return v;
}
static VALUE rb_gsl_sf_exp_mult_err_e(VALUE obj, VALUE x, VALUE dx,
VALUE y, VALUE dy)
{
gsl_sf_result *rslt = NULL;
VALUE v;
// local variable "status" declared and set, but never used
//int status;
Need_Float(x); Need_Float(y);
Need_Float(dx); Need_Float(dy);
v = Data_Make_Struct(cgsl_sf_result, gsl_sf_result, 0, free, rslt);
/*status =*/ gsl_sf_exp_mult_err_e(NUM2DBL(x), NUM2DBL(dx), NUM2DBL(y), NUM2DBL(dy), rslt);
return v;
}
static VALUE rb_gsl_sf_exp_mult_err_e10_e(VALUE obj, VALUE x, VALUE dx,
VALUE y, VALUE dy)
{
gsl_sf_result_e10 *rslt = NULL;
VALUE v;
// local variable "status" declared and set, but never used
//int status;
Need_Float(x); Need_Float(y);
Need_Float(dx); Need_Float(dy);
v = Data_Make_Struct(cgsl_sf_result_e10, gsl_sf_result_e10, 0, free, rslt);
/*status =*/ gsl_sf_exp_mult_err_e10_e(NUM2DBL(x), NUM2DBL(dx), NUM2DBL(y), NUM2DBL(dy), rslt);
return v;
}
void Init_gsl_sf_exp(VALUE module)
{
rb_define_module_function(module, "exp", rb_gsl_sf_exp, 1);
rb_define_module_function(module, "exp_e", rb_gsl_sf_exp_e, 1);
rb_define_module_function(module, "exp_e10_e", rb_gsl_sf_exp_e10_e, 1);
rb_define_module_function(module, "exp_mult", rb_gsl_sf_exp_mult, 2);
rb_define_module_function(module, "exp_mult_e", rb_gsl_sf_exp_mult_e, 2);
rb_define_module_function(module, "exp_mult_e10_e", rb_gsl_sf_exp_mult_e10_e, 2);
rb_define_module_function(module, "expm1", rb_gsl_sf_expm1, 1);
rb_define_module_function(module, "expm1_e", rb_gsl_sf_expm1_e, 1);
rb_define_module_function(module, "exprel", rb_gsl_sf_exprel, 1);
rb_define_module_function(module, "exprel_e", rb_gsl_sf_exprel_e, 1);
rb_define_module_function(module, "exprel_2", rb_gsl_sf_exprel_2, 1);
rb_define_module_function(module, "exprel_2_e", rb_gsl_sf_exprel_2_e, 1);
rb_define_module_function(module, "exprel_n", rb_gsl_sf_exprel_n, 2);
rb_define_module_function(module, "exprel_n_e", rb_gsl_sf_exprel_n_e, 2);
rb_define_module_function(module, "exp_err_e", rb_gsl_sf_exp_err_e, 2);
rb_define_module_function(module, "exp_err_e10_e", rb_gsl_sf_exp_err_e10_e, 2);
rb_define_module_function(module, "exp_mult_err_e", rb_gsl_sf_exp_mult_err_e, 4);
rb_define_module_function(module, "exp_mult_err_e10_e", rb_gsl_sf_exp_mult_err_e10_e, 4);
}
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