asa239, a FORTRAN90 code which evaluates the incomplete Gamma function, by Shea.
The code is Applied Statistics Algorithm 239.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
asa239 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
ASA032, a FORTRAN90 code which evaluates the incomplete Gamma function.
ASA147, a FORTRAN77 code which evaluates the incomplete Gamma function.
DCDFLIB, a FORTRAN90 code which evaluates and inverts a number of statistical distributions.
PROB, a FORTRAN90 code which evaluates and inverts a number of probabilistic distributions.
TEST_VALUES, a FORTRAN90 code which contains sample values for a number of distributions.
TOMS435, a FORTRAN77 code which evaluates the modified incomplete Gamma function.
TOMS708, a FORTRAN90 code which includes routines to evaluate the incomplete Gamma function.
Original FORTRAN77 version by B Shea; FORTRAN90 version by John Burkardt.