pdsmath.h

/*
 * pdsmath.h
 * 
 * Copyright 2011 Fernando Pujaico Rivera <fernando.pujaico.rivera@gmail.com>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program 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.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 */

#ifndef __PDSMATH_H__
#define __PDSMATH_H__


#ifdef __cplusplus
extern "C" {
#endif 

#define PDS_PHI 1.618033988749894


#define PDS_GOLDEN_RATIO PDS_PHI

#define PDS_1_OVER_SQRT_2PI 0.398942280401433

#define PDS_2_OVER_SQRT_PI  1.12837916709551

#define PDS_LN2 6.93147180559945e-01

static const unsigned long int PDS_MPB10[]={0,7,97,997,9973,99991,999983,9999991};

static const unsigned long int PDS_LENGTH_MPB10=8;


double pds_qfunc(double x);



double pds_qfuncinv(double q);

double pds_gamma(double x);


double pds_erf(double x);


double pds_erfc(double x);


double pds_sgn(double x);



int pds_isgn(int x);

double pds_sinc(double x);


double pds_sigmoid(double x);


double pds_gauss(double x,double U,double Sigma);


double pds_gauss2(double x,double U,double Sigma2);


double pds_gnorm(double x);


double pds_exp22(double x);


double pds_exp2(double x);


double pds_exp1(double x);

double pds_r1exp1(double x,double r);


double pds_hb(double x);

double pds_hbinv(double h);

double pds_nchoosek(unsigned int n,unsigned int k);


double pds_binomial(unsigned int n,unsigned int k, double p);


double pds_integration(double (*f)(double), double a,double b,unsigned int n);


double pds_integration1p(double (*f)(double,double),double r, double a,double b,unsigned int n);

double pds_integration_with_eval_funcs(double (*f)(double), double a,double b, double fa,double fb,unsigned int n);


double pds_integration_inf(double (*f)(double), double a,unsigned int n);


double pds_integration1p_inf(double (*f)(double,double),double r, double a,unsigned int n);

#ifdef __cplusplus
}
#endif 


#endif /* __PDSMATH_H__ */