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

NAME

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

SYNOPSIS

Functions/Subroutines


logical function CSLECT (z)
CSLECT

Function/Subroutine Documentation

logical function CSLECT (complex z)

CSLECT

Purpose:

!>
!> CSLECT returns .TRUE. if the eigenvalue Z is to be selected,
!> otherwise it returns .FALSE.
!> It is used by CCHK41 to test if CGEES successfully sorts eigenvalues,
!> and by CCHK43 to test if CGEESX successfully sorts eigenvalues.
!>
!> The common block /SSLCT/ controls how eigenvalues are selected.
!> If SELOPT = 0, then CSLECT return .TRUE. when real(Z) is less than
!> zero, and .FALSE. otherwise.
!> If SELOPT is at least 1, CSLECT returns SELVAL(SELOPT) and adds 1
!> to SELOPT, cycling back to 1 at SELMAX.
!>

Parameters

Z 

!>          Z is COMPLEX
!>          The eigenvalue Z.
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 55 of file cslect.f.

Author

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Version 3.12.0 LAPACK