Documentation/How Tos/Calc: GAMMAINV function

GAMMAINV

Calculates the inverse of the cumulative GAMMADIST function.

Syntax:

GAMMAINV(p; α; λ)

The gamma distribution is a family of continuous probability distributions, with two controlling parameters α and λ.

GAMMAINV returns the value n, such that GAMMADIST(n; α; λ; 1) is p.

Example:

GAMMAINV(0.86; 1; 1)

returns approximately 2.

See also:

GAMMADIST

Statistical functions

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