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"