Module CGEESX in LAPACK

• LAPACK Information

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

CGEESX

 
Computes the eigenvalues and Schur factorization of a general matrix, orders the
factorization so that selected eigenvalues are at the top left of the Schur form,
and computes reciprocal condition numbers for the average of the selected
eigenvalues, and for the associated right invariant subspace. (Expert driver.).
 
Classes  :  D4a4 . Complex non-Hermitian matrix eigenvalue problems
 
Type     : Fortran subroutine in LAPACK package.
Access   : Public domain. Portable.
Precision: Single.
 
Usage    : CALL CGEESX( JOBVS, SORT, SELECT, SENSE, N, A, LDA, SDIM, W, VS, LDVS,
           RCONDE, RCONDV, WORK, LWORK, RWORK, BWORK, INFO )
 
Details  : Fullsource NeededBLAS Source
Sites    : (1) ARNO (2) ITL (3) NETLIB
 

Implementation of CGEESX from LAPACK on ARNO

 
ARNO:      Silicon Graphics Origin 2000, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Single. (Double: ZGEESX)
 
Those logged in to arno.nist.gov or amur.nist.gov may access this module as
follows.
 
   Access       : f90 prog.f -lscs (or -lscs_mp for multiprocessor version)
   Documentation: man cgeesx
 

Implementation of CGEESX from LAPACK on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Single. (Double: ZGEESX)
 
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 CGEESX from LAPACK on NETLIB

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