Name
gammaln — The logarithm of gamma function.
Calling Sequence
y = gammaln(x)
Parameters
- x
real vector
- y
real vector with same size.
Description
gammaln(x) evaluates the logarithm of gamma
function at all the elements of x, avoiding underflow
and overflow. x must be real.
Authors
W. J. Cody and L. Stoltz (code from Netlib (specfun))