Loadable Function: z = gsl_sf_lngamma (arg1)

Loadable Function: [z, err] = gsl_sf_lngamma (…)

Computes the logarithm of the Gamma function, \log(\Gamma(x)), subject to x not a being negative integer. For x<0 the real part of \log(\Gamma(x)) is returned, which is equivalent to \log(|\Gamma(x)|). The function is computed using the real Lanczos method.

err contains an estimate of the absolute error in the value z.

This function is from the GNU Scientific Library, see http://www.gnu.org/software/gsl/ for documentation.

Package: gsl