Gamma Function Calculator

Compute Γ(x) for any positive real number using the Lanczos approximation. Includes lnΓ(x), digamma, and factorial relation.

Calculate Γ(x)

Value of x (must be positive, non-integer is fine)

Γ(x)

lnΓ(x)

Γ(x+1) = xΓ(x)

Γ(x-1) = Γ(x)/x-1

x	Γ(x)	Factorial relation