InverseGammaRegularized

InverseGammaRegularized[a, s] gives the inverse of the regularized incomplete gamma function.

Examples

Compute inverse:

InverseGammaRegularized[2, 0.5]
(* 1.67835 *)

Verify relationship:

GammaRegularized[2, InverseGammaRegularized[2, 0.5]]
(* 0.5 *)

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