Module SPBSTF in LAPACK

• LAPACK Information

• Components
  • Fullsource from NETLIB
  • NeededBLAS from ITL
  • Source from NETLIB

SPBSTF

 
Computes a split Cholesky factorization of a real symmetric positive definite
band matrix. Designed to be used in conjunction with SSBGST. The factorization
has the form A = S'S, where S is a band matrix of the same bandwidth as A, with block
rows ( U 0 ) and ( M L ), where U is upper triangular of order m = (n+b)/2, L is lower
triangular of order n-m, and b is the bandwidth of A.
 
Classes  :  D4c1c . Standardize matrix eigenvalue problem
            D3b2 .  Determinants of real symmetric positive definite banded
                  matrices
 
Type     : Fortran subroutine in LAPACK package.
Access   : Public domain. Portable.
Precision: Single.
 
Usage    : CALL SPBSTF (UPLO, N, KD, AB, LDAB, INFO)
 
See also : SSBGST
 
Details  : Fullsource NeededBLAS Source
Sites    : (1) ITL (2) NETLIB
 

Implementation of SPBSTF from LAPACK on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Single. (Double: DPBSTF)
 
Access available only to NIST staff on internal Unix systems. They may access this
package provided the /itl tree is cross-mounted.
 
   Access       : f77 -o myprog myprog.f -llapack -lblas
   NeededBLAS   : Can be downloaded from netlib
 

Implementation of SPBSTF from LAPACK on NETLIB

 
NETLIB:    Public access repository, The University of Tennessee at
           Knoxville and Bell Laboratories
 
Precision: Single. (Double: DPBSTF)
 
You may access components from NETLIB outside GAMS as follows.
 
   Source       : See LAPACK Web Page
   Fullsource   : See LAPACK Web Page