FNP_rayleighreturns the value of the integral of the Rayleigh probability density function of parameterBeta(here written asβ), atx,P(x;).Pis defined by the expression
which reduces to
Pis defined for all positive values of .
P(x;)
Errors
FNP_rayleighcauses an HTBasic error if its arguments are not all of type REAL or if the value of is negative or zero.