rayleighp

double rayleighp(double x, double s);

Returns the value of the Rayleigh random variable distribution function with scale parameter s at the value x.

Parameters:
xCritical point.
sScale parameter.

Returns:
P(X ≤ x | s)

Errors:
NUMERICS_ERROR is raised if s ≤ 0

Usage:
double p = rayleighp(.5, 1.5)

Header:
#include "contdist.h"