Module GAMMA in SPECFUN

• SPECFUN Information

• Components
  • Fullsource from NETLIB
  • Source from NETLIB
  • Test from NETLIB

GAMMA

 
Calculates the GAMMA function for a real argument X. Uses rational functions that
approximate the GAMMA function to at least 20 significant decimal digits.
 
Classes  :  C7a . Gamma, log gamma, reciprocal gamma functions
 
Type     : Fortran subroutine in SPECFUN package.
Access   : Public domain. Portable.
Precision: Single or double.
Note     : Both single and double precision versions can be extracted from the
           supplied source with simple editing changes.
 
Usage    : S = GAMMA(X)
 
Details  : Fullsource Source Test
Sites    : (1) NETLIB
 

Implementation of GAMMA from SPECFUN on NETLIB

 
NETLIB:    Public access repository, The University of Tennessee at
           Knoxville and Bell Laboratories
 
Precision: Single or double.
Note     : Both single and double precision versions can be extracted from the
           supplied source with simple editing changes.
 
You may access components from NETLIB outside GAMS as follows.
 
   Source       : echo "send only gamma from specfun" | mail netlib@ornl.gov
   Fullsource   : echo "send gamma from specfun" | mail netlib@ornl.gov
   Test         : echo "send gamtst from specfun" | mail netlib@ornl.gov