Module SGELS.C in CLAPACK

• CLAPACK Information

• Components
  • Fullsource from NETLIB
  • Readme from NETLIB
  • Source from NETLIB
  • Utilities from NETLIB

SGELS.C

 
Computes the least squares solution to an over-determined system of linear
equations, A X=B or A**H X=B, or the minimum norm solution of an under-determined
system, where A is a general rectangular matrix of full rank, using a QR or LQ
factorization of A. (Simple driver.). [C version of LAPACK routine, converted
from Fortran by f2c.].
 
Classes  :  D9a1 . Least squares (L-2) solution of singular, overdetermined or
                 underdetermined systems of linear equations without
                 constraints
 
Type     : C subroutine in CLAPACK package.
Access   : Public domain. Portable.
Precision: Single.
Note     : For best results, CLAPACK developers prefer that you download and
           install the entire CLAPACK library on your system. To do this, see the 
           netlib CLAPACK distribution for details.
 
Usage    : int sgels_(char *trans, integer *m, integer *n, integer * nrhs, real
           *a, integer *lda, real *b, integer *ldb, real *work, integer *lwork,
           integer *info)
 
Details  : Fullsource Readme Source Utilities
Sites    : (1) NETLIB
 

Implementation of SGELS.C from CLAPACK on NETLIB

 
NETLIB:    Public access repository, The University of Tennessee at
           Knoxville and Bell Laboratories
 
Precision: Single. (Double: DGELS.C)
Note     : For best results, CLAPACK developers prefer that you download and
           install the entire CLAPACK library on your system. To do this, see the 
           netlib CLAPACK distribution for details.
 
You may access components from NETLIB outside GAMS as follows.
 
   Access       : The entire package can be retrieved by anonymous ftp from
                  ftp.netlib.org.
   Source       : echo 'send only sgels.c from clapack/single' | mail
                  netlib@ornl.gov
   Fullsource   : echo 'send sgels.c from clapack/single' | mail
                  netlib@ornl.gov
   Utilities    : Retrieve clapack/f2clibs.tgz by anonymous ftp from
                  ftp.netlib.org
   Readme       : Retrieve clapack/readme by anonymous ftp from
                  ftp.netlib.org