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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget33.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget33.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget33.f

SYNOPSIS

Functions/Subroutines


subroutine SGET33 (rmax, lmax, ninfo, knt)
SGET33

Function/Subroutine Documentation

subroutine SGET33 (real rmax, integer lmax, integer ninfo, integer knt)

SGET33

Purpose:

!>
!> SGET33 tests SLANV2, a routine for putting 2 by 2 blocks into
!> standard form.  In other words, it computes a two by two rotation
!> [[C,S] 
[-S,C]] where in
!>
!>    [ C S ][T(1,1) T(1,2)][ C -S ] = [ T11 T12 ]
!>    [-S C ][T(2,1) T(2,2)][ S  C ]   [ T21 T22 ]
!>
!> either
!>    1) T21=0 (real eigenvalues), or
!>    2) T11=T22 and T21*T12<0 (complex conjugate eigenvalues).
!> We also  verify that the residual is small.
!> 

Parameters

RMAX

!>          RMAX is REAL
!>          Value of the largest test ratio.
!> 

LMAX

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

NINFO

!>          NINFO is INTEGER
!>          Number of examples returned with INFO .NE. 0.
!> 

KNT

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

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 75 of file sget33.f.

Author

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Version 3.12.0 LAPACK