Changes

*This is often called the Polygamma function.

*This is often called the Polygamma function.

*Gamma, Lgamma, Digamma and Trigamma functions are internal generic primitive functions.  

*Gamma, Lgamma, Digamma and Trigamma functions are internal generic primitive functions.  

*Normally the number <math>e</math> to the power <math>GAMMALN(x)</math>, where <math>x</math> is an integer, is same as <math>(x-1)!</math>.

*Normally the number <math>e^{GAMMALN(x)}</math>, where <math>x</math> is an integer, is same as <math>(x-1)!</math>.

:<math>GAMMALN=LN(GAMMA(x))</math>,

:<math>GAMMALN=LN(GAMMA(x))</math>,

where

where