Scroll to navigation

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget40.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget40.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget40.f

SYNOPSIS

Functions/Subroutines


subroutine DGET40 (rmax, lmax, ninfo, knt, nin)
DGET40

Function/Subroutine Documentation

subroutine DGET40 (double precision rmax, integer lmax, integer, dimension( 2 ) ninfo, integer knt, integer nin)

DGET40

Purpose:

!>
!> DGET40 tests DTGEXC, a routine for swapping adjacent blocks (either
!> 1 by 1 or 2 by 2) on the diagonal of a pencil in real generalized Schur form.
!> Thus, DTGEXC computes an orthogonal matrices Q and Z such that
!>
!>     Q' * ( [ A B ], [ D E ] ) * Z  = ( [ C1 B1 ], [ F1 E1 ] )
!>          ( [ 0 C ]  [   F ] )        ( [ 0  A1 ]  [    D1]  )
!>
!> where (C1,F1) is similar to (C,F) and (A1,D1) is similar to (A,D).
!> Both (A,D) and (C,F) are assumed to be in standard form
!> and (A1,D1) and (C1,F1) are returned with the
!> same properties.
!> 

Parameters

RMAX

!>          RMAX is DOUBLE PRECISION
!>          Value of the largest test ratio.
!> 

LMAX

!>          LMAX is INTEGER
!>          Example number where largest test ratio achieved.
!> 

NINFO

!>          NINFO is INTEGER array, dimension (2)
!>          NINFO( 1 ) = DTGEXC without accumulation returned INFO nonzero
!>          NINFO( 2 ) = DTGEXC with accumulation returned INFO nonzero
!> 

KNT

!>          KNT is INTEGER
!>          Total number of examples tested.
!> 

NIN

!>          NIN is INTEGER
!>          Input logical unit number.
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 84 of file dget40.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Version 3.12.0 LAPACK