Module DQRSL in LINPACK

• LINPACK Information

• Components
  • Fullsource from NETLIB
  • Source from NETLIB

DQRSL

 
Applies the output of DQRDC to compute coordinate transformations,
projections, and least squares solutions (general double precision matrix).
 
Classes  :  D2a1 . Solution of systems of linear equations, including matrix
                 inverses, and LU and related factorizations (general real
                 nonsymmetric matrices)
            D9a1 . Least squares (L-2) solution of singular, overdetermined or
                 underdetermined systems of linear equations without
                 constraints
 
Type     : Fortran subroutine in LINPACK package.
Access   : Public domain. Portable.
Precision: Double.
 
Usage    : CALL DQRSL(X, LDX, N, K, QRAUX, Y, QY, QTY, B, RSD, XB, JOB, INFO)
 
See also : DQRDC
 
Details  : Fullsource Source
Sites    : (1) ARNO (2) NETLIB
 

Implementation of DQRSL 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: SQRSL)
 
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 dqrsl
 

Implementation of DQRSL from LINPACK on NETLIB

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