SLCTES
Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
November 2006
November 2006
Purpose
SLCTES 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 SDRGES to test whether the driver
routine SGGES succesfully sorts eigenvalues.
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 SDRGES to test whether the driver
routine SGGES succesfully sorts eigenvalues.
Arguments
| ZR |
(input) REAL
The numerator of the real part of a complex eigenvalue
(ZR/D) + i*(ZI/D). |
| ZI |
(input) REAL
The numerator of the imaginary part of a complex eigenvalue
(ZR/D) + i*(ZI). |
| D |
(input) REAL
The denominator part of a complex eigenvalue
(ZR/D) + i*(ZI/D). |