```
public final class LanczosApproximation
extends Object
```
Lanczos approximation to the Gamma function. It is related to the Gamma function by the following equation \[ \Gamma(x) = \sqrt{2\pi} \, \frac{(g + x + \frac{1}{2})^{x + \frac{1}{2}} \, e^{-(g + x + \frac{1}{2})} \, \mathrm{lanczos}(x)} {x} \] where \( g \) is the Lanczos constant. See equations (1) through (5), and Paul Godfrey's Note on the computation of the convergent Lanczos complex Gamma approximation.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static double`	`g()`	Return the Lanczos constant \( g = \frac{607}{128} \).
`static double`	`value(double x)`	Computes the Lanczos approximation.

Class LanczosApproximation