|
 |
 |
 |
 |
 |
 |
digamma function |
gamma |
last updated: 2003-07-20 |
The derivative of the logarithmic gamma function,
the digamma function y(x) can be used to
clarify the sum of some rational series.
The following relation can be used:
The digamma function can be generalized to the nth derivative as the polygamma function.