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gammaincinv

Inverse of the regularized incomplete gamma function.

v = gammaincinv(y, a, type)

Returns x such that gammainc(x, a) = y. With type = 'upper', inverts the upper-tail variant.

gammaincinv(0.5, 2)
  • gammainc — Lower incomplete gamma function (regularized).
  • gamma — Gamma function Γ(x).