asa103


asa103, a FORTRAN90 code which evaluates the digamma or psi function, by Jose Bernardo.

The code is Applied Statistics Algorithm 103.

Licensing:

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

Languages:

asa103 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

asa103_test

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Author:

Original FORTRAN77 version by Jose Bernardo; FORTRAN90 version by John Burkardt.

Reference:

  1. Jose Bernardo,
    Algorithm AS 103: Psi ( Digamma ) Function,
    Applied Statistics,
    Volume 25, Number 3, 1976, pages 315-317.

Source Code:


Last revised on 28 August 2021.