rgamma

constexpr Complex rgamma(const Complex &z) noexcept: Evaluates the reciprocal of the gamma function [1].

Parameters

const Complex &z

A complex number.

Returns

type Complex

A complex number.

This function simply evaluates \(1/\Gamma(z)\).

Example

Complex z = 1.0 + 1_j;
std::cout << rgamma(z) << "\n";

Output:

1.83074 + 0.569608j

References