incomplete gamma function p a , x = 1-q a , x a cleanroom implementation of numerical recipes gammp a , x ; in mathematica this function is 1-gammaregularized concode_field_sep PlaceHolder placeHolder concode_field_sep double incompleteGammaQ concode_elem_sep double lnGamma concode_elem_sep double incompleteGamma
double function ( double arg0 , double arg1 ) { return incompleteGamma ( arg1 , arg0 , lnGamma ( arg0 ) ) ; }