double betai(double a, double b, double x);
Returns the incomplete beta function Ix(a,b).
Parameters:
a | First element of the Beta function. |
---|---|
b | Second element of the Beta function. |
x | Upper bound of integration. |
Returns:
?
Errors:
NUMERICS_ERROR
is raised if x < 0 or x > 1
Header:
#include "mathx.h"