ASA147
the Incomplete Gamma Function


ASA147, a C++ library which evaluates the incomplete Gamma function.

ASA147 is Applied Statistics Algorithm 147.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

ASA147 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs:

ASA032, a C++ library which evaluates the incomplete Gamma function.

asa147_test

ASA239, a C++ library which evaluates the incomplete Gamma function.

DCDFLIB, a C++ library which evaluates and inverts a number of statistical distributions.

GSL, a C++ library which includes many routines for evaluating probability distributions.

PROB, a C++ library which evaluates and inverts a number of probabilistic distributions.

TEST_VALUES, a C++ library which contains sample values for a number of distributions.

TOMS435, a FORTRAN77 library which evaluates the modified incomplete Gamma function.

TOMS708, a FORTRAN90 library which includes routines to evaluate the incomplete Gamma function.

Reference:

  1. Chi Leung Lau,
    Algorithm AS 147: A Simple Series for the Incomplete Gamma Integral,
    Applied Statistics,
    Volume 29, Number 1, 1980, pages 113-114.

Source Code:


Last revised on 29 January 2020.