beta.c

来自「numerical recipes in C source codes」· C语言 代码 · 共 10 行

#include <math.h>

float beta(float z, float w)
{
	float gammln(float xx);

	return exp(gammln(z)+gammln(w)-gammln(z+w));
}
/* (C) Copr. 1986-92 Numerical Recipes Software "U,6VV'. */