Gamma function

Complex valued special functions.

boring_math.special_functions.gamma.gamma(z: complex) → complex

Gamma function valid for all complex values of z.

Note

Lanczos approximation of Gamma using g = 7 with n = 9 terms. The values of g and n were chosen to balance accuracy with speed. Typically accurate to 13 correct decimal places.

Code modified from the Wikipedia Lanczos appoximation article.

boring_math.special_functions.gamma.gamma_real(x: float) → float

Gamma function valid for all real values of x.