Gammaq.cxx File Reference

The Faithful implementation of the GammaQ. More...

#include "Gammaq.h"
#include <iostream>
#include <cassert>
#include <cmath>

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Namespaces
namespace	hippodraw
	Namespace for HippoDraw.
namespace	hippodraw::Numeric
	Collection of linear algebra functions.
Functions
double	gammln (double xx)
	Calculates natural log of a gamma function.
double	gammq (double a, double x)
	Calculates Q, the probability that the chi2 should exceed a particilar chi2 (input) by chance.
void	gcf (double *gammcf, double a, double x, double *gln)
	Calculates Q, the probability that the chi2 should exceed a particilar chi2 (input) by chance, by using continued fractions.
void	gser (double *gamser, double a, double x, double *gln)
	Calculates Q, the probability that the chi2 should exceed a particilar chi2 (input) by chance, by using series approximation.

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Detailed Description

The Faithful implementation of the GammaQ.

Code is taken from Numerical Recipes in C.

Definition in file Gammaq.cxx.