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gammainc

Lower incomplete gamma function (regularized).

Syntax

Section titled “Syntax”
v = gammainc(x, a, scaled)

Description

Section titled “Description”

Returns the regularized lower incomplete gamma function P(a, x) = γ(a, x) / Γ(a). With scaled = false, returns the unregularized form γ(a, x).

Example

Section titled “Example”
gammainc(1, 2)         % ≈ 0.264

See also

Section titled “See also”
  • gamma — Gamma function Γ(x).
  • gammaincinv — Inverse of the regularized incomplete gamma function.