Gamma Probability Distribution Function

Density of gamma distribution with parameters a, b at the point x is determined by the following expression:

Thus, the value of integral gamma distribution function:

Parameter b is a scale parameter. In standard case of b = 1 density of gamma distribution is determined by the following expression:

Inverse Function of Gamma Probability Distribution

Integral function of gamma distribution:

See also:

IStatistics.GammaDist | IStatistics.GammaInv | Library of Methods and Models