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InverseGammaRegularized[a, s]
gives the inverse of the regularized incomplete gamma function.
  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • With the regularized incomplete gamma function defined by Q(a,z)=Gamma(a,z)/Gamma(a), InverseGammaRegularized[a, s] is the solution for z in s=Q(a,z).
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