Inverse gamma function
= Inverse gamma function
{wiki=Inverse_gamma_function}
The inverse gamma function refers to the function that is defined as the inverse of the gamma function. The gamma function, denoted as \\(\\Gamma(z)\\), is a generalization of the factorial function to complex numbers, except for the non-positive integers. It is defined for \\(z > 0\\) as: \\\[ \\Gamma(z) = \\int_0^\\infty t^\{z-1\} e^\{-t\} \\, dt.