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LAPACK
3.5.0
LAPACK: Linear Algebra PACKage
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Go to the source code of this file.
Functions/Subroutines | |
logical function | slctes (ZR, ZI, D) |
SLCTES More... | |
logical function slctes | ( | real | ZR, |
real | ZI, | ||
real | D | ||
) |
SLCTES
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.
[in] | ZR | ZR is REAL The numerator of the real part of a complex eigenvalue (ZR/D) + i*(ZI/D). |
[in] | ZI | ZI is REAL The numerator of the imaginary part of a complex eigenvalue (ZR/D) + i*(ZI). |
[in] | D | D is REAL The denominator part of a complex eigenvalue (ZR/D) + i*(ZI/D). |
Definition at line 69 of file slctes.f.