PrevUpHomeScilab Reference ManualNext

gammaln

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.

Examples



gammaln(0.5)

See also

gamma, dlgamma

Author

W. J. Cody and L. Stoltz (code from Netlib (specfun))

<< fullgamma >>