Module DPPFA in LINPACK

• LINPACK Information

• Components
  • Fullsource from NETLIB
  • Source from NETLIB

DPPFA

 
Use Cholesky algorithm to factor double precision positive definite matrix
stored in packed form.
 
Classes  :  D2b1b . Solution of systems of linear equations, including matrix
                  inverses, and LU and related factorizations (real
                  symmetric positive definite matrices)
 
Type     : Fortran subroutine in LINPACK package.
Access   : Public domain. Portable.
Precision: Double.
 
Usage    : CALL DPPFA(AP, N, INFO)
 
Details  : Fullsource Source
Sites    : (1) ARNO (2) NETLIB
 

Implementation of DPPFA from LINPACK on ARNO

 
ARNO:      Silicon Graphics Origin 2000, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Double. (Single: SPPFA)
 
Those logged in to arno.nist.gov or amur.nist.gov may access this module as
follows.
 
   Access       : f77 -o prog prog.f -lcomplib.sgimath
   Documentation: man dppfa
 

Implementation of DPPFA from LINPACK on NETLIB

 
NETLIB:    Public access repository, The University of Tennessee at
           Knoxville and Bell Laboratories
 
Precision: Double. (Single: SPPFA)
 
You may access components from NETLIB outside GAMS as follows.
 
   Source       : echo "send only dppfa from linpack" | mail netlib@ornl.gov
   Fullsource   : echo "send dppfa from linpack" | mail netlib@ornl.gov