TESTING/EIG/slctsx.f(3) Library Functions Manual TESTING/EIG/slctsx.f(3)

TESTING/EIG/slctsx.f


logical function slctsx (ar, ai, beta)
SLCTSX

SLCTSX

Purpose:

!>
!> This function is used to determine what eigenvalues will be
!> selected.  If this is part of the test driver SDRGSX, do not
!> change the code UNLESS you are testing input examples and not
!> using the built-in examples.
!>

Parameters

AR 
!>          AR is REAL
!>          The numerator of the real part of a complex eigenvalue
!>          (AR/BETA) + i*(AI/BETA).
!>

AI

!>          AI is REAL
!>          The numerator of the imaginary part of a complex eigenvalue
!>          (AR/BETA) + i*(AI).
!>

BETA

!>          BETA is REAL
!>          The denominator part of a complex eigenvalue
!>          (AR/BETA) + i*(AI/BETA).
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 64 of file slctsx.f.

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Version 3.12.0 LAPACK