WGami WGamic WGamit WGammap WGammapd WGammapi WGammapia WGammaq WGammaqi WGammaqia

WGammapia() Function WGammapia ( X As  Double, P As  Double  ) Inverse function of a for normalized incomplete gamma function P(a, x) Purpose This function computes the inverse function of a for normalized incomplete gamma function P(a, x). Returns Inverse function of a for normalized incomplete gamma function P(a, x). Parameters [in] X Argument x. (X > 0) [in] P Value of P(a, x). (0 <= P <= 1) Reference boost/math/special_functions