Generates a pseudorandom number from a standard exponential distribution.
A double
which specifies a pseudorandom number from a standard exponential distribution.
The probability density function is ; for .
NextExponential
uses an antithetic inverse CDF technique; that is, a uniform random deviate U is generated and the inverse of the exponential cumulative distribution function is evaluated at 1.0 - U to yield the exponential deviate.
Deviates from the exponential distribution with mean THETA
can be generated by using NextExponential
and then multiplying the result by THETA
.
Random Class | Imsl.Stat Namespace | Example