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GAMS Module QZVAL in CMLIB


QZVAL

 
The third step of the QZ algorithm for generalized eigenproblems. Accepts a pair
of real matrices, one in quasi-triangular form and the other in upper triangular
form and computes the eigenvalues of the associated eigenproblem. Usually
preceded by QZHES, QZIT, and followed by QZVEC.
 
Classes  :  D4c2c . Compute eigenvalues of matrices in other compact forms
 
Type     : Fortran subroutine in CMLIB library (EISPACK sublibrary).
Access   : Public domain. Portable.
Precision: Single.
 
Usage    : CALL QZVAL(NM,N,A,B,ALFR,ALFI,BETA,MATZ,Z)
 
See also : QZHES QZIT QZVEC
 
Details  : Documentation Fullsource Source
Sites    : (1) ARNO (2) ITL
 

Implementation of QZVAL from CMLIB 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         : See cmlib man page.
   Documentation: cmdoc qzval
   Source       : cmsrc qzval
   Fullsource   : cmsrcx qzval
 

Implementation of QZVAL from CMLIB 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 main main.f -lcm
   Documentation: cmdoc qzval
   Source       : cmsrc QZVAL
   Fullsource   : cmsrcx qzval


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