asa245, a C code which evaluates the logarithm of the gamma function, by Allan Mcleod;
This is Applied Statistics Algorithm 245..
The computer code and data files described and made available on this web page are distributed under the MIT license
asa245 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
fn, a C code which approximates elementary and special functions using Chebyshev polynomials, by Wayne Fullerton.
test_values, a C code which contains sample values for a number of distributions.
toms291, a C code which evaluates the logarithm of the Gamma function.
Original FORTRAN77 version by Allan Mcleod; C version by John Burkardt.