Gamma

The net.sf.doodleproject.numerics4j.special.Gamma class provides implementations for several functions related to the Gamma function:

FunctionClass MethodReference
Log Gamma logGamma
Eric W. Weisstein. "Gamma Function."
From MathWorld--A Wolfram Web Resource.
Regularized Gamma
Eric W. Weisstein. "Regularized Gamma Function."
From MathWorld--A Wolfram Web Resource.