Module ALGAMA in SPECFUN

• SPECFUN Information

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

ALGAMA

 
Calculates the LOG(GAMMA) function for a positive real argument X. Uses rationa
functions that theoretically approximate LOG(GAMMA) to at least 18 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 = ALGAMA(X)
 
Details  : Fullsource Source Test
Sites    : (1) NETLIB
 

Implementation of ALGAMA 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 algama from specfun" | mail netlib@ornl.gov
   Fullsource   : echo "send algama from specfun" | mail netlib@ornl.gov
   Test         : echo "send algtst from specfun" | mail netlib@ornl.gov