PURUSPE
PURe RUSt SPEcial function library. There are no dependencies.
Implemented Functions
Gamma functions
ln_gamma
: Logarithmic gamma functiongamma
: Gamma functiongammap
: Regularized lower gamma functiongammaq
: Regularized upper gamma functioninvgammp
: Inverse regularized lower gamma function
Beta function
beta
: Beta functionbetai
: Regularized Incomplete beta functioninvbetai
: Inverse regularized incomplete beta function
Error functions
erf
: Error functionerfc
: Complementary Error functioninverf
: Inverse error functioninverfc
: Inverse complementary error function
Reference
- Press, William H., and William T. Vetterling. Numerical Recipes. Cambridge: Cambridge Univ. Press, 2007.