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

NAME

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

SYNOPSIS

Functions/Subroutines


logical function DLCTES (zr, zi, d)
DLCTES

Function/Subroutine Documentation

logical function DLCTES (double precision zr, double precision zi, double precision d)

DLCTES

Purpose:

!>
!> DLCTES returns .TRUE. if the eigenvalue (ZR/D) + sqrt(-1)*(ZI/D)
!> is to be selected (specifically, in this subroutine, if the real
!> part of the eigenvalue is negative), and otherwise it returns
!> .FALSE..
!>
!> It is used by the test routine DDRGES to test whether the driver
!> routine DGGES successfully sorts eigenvalues.
!>

Parameters

ZR 

!>          ZR is DOUBLE PRECISION
!>          The numerator of the real part of a complex eigenvalue
!>          (ZR/D) + i*(ZI/D).
!>

ZI

!>          ZI is DOUBLE PRECISION
!>          The numerator of the imaginary part of a complex eigenvalue
!>          (ZR/D) + i*(ZI).
!>

D

!>          D is DOUBLE PRECISION
!>          The denominator part of a complex eigenvalue
!>          (ZR/D) + i*(ZI/D).
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 67 of file dlctes.f.

Author

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Version 3.12.0 LAPACK