Module CCHEX in SLATEC

• SLATEC Information

• Components
  • Documentation from ITL
  • Fullsource from ITL
  • Source from ITL

CCHEX

 
Update the Cholesky factorization A=TRANS(R)*R of a positive definite matrix A
of order P under diagonal permutations of the form TRANS(E)*A*E, where E is a
permutation matrix.
 
Classes  :  D7b . Update Cholesky decomposition
 
Type     : Fortran subroutine in SLATEC library.
Access   : Public domain. Portable.
Precision: Single.
 
Usage    : CALL CCHEX (R, LDR, P, K, L, Z, LDZ, NZ, C, S, JOB)
 
Details  : Documentation Fullsource Source
Sites    : (1) ARNO (2) ITL
 

Implementation of CCHEX from SLATEC on ARNO

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

Implementation of CCHEX from SLATEC on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Single.
 
Access available only to NIST staff on internal Unix systems. They may access this
package provided the /itl tree is cross-mounted.
 
   Link         : f77 -o example example.f -lslatec
   Documentation: slatecdoc cchex
   Source       : slatecsrc CCHEX
   Fullsource   : slatecsrcx cchex