Returns the natural logarithm of the gamma function.

Parameters

x

The value.

Return Value

log of gamma.

Remarks

The implementation of this method is based on:

• Gamma Function, equation (28).
• Lanczos Approximation, equations (1) through (5).
• Paul Godfrey, A note on the computation of the convergent Lanczos complex Gamma approximation.

See Also

Gamma Class | numerics4net.special Namespace