NAME

TESTING/EIG/slctes.f

SYNOPSIS

Functions/Subroutines

logical function slctes (zr, zi, d)
SLCTES

Function/Subroutine Documentation

logical function slctes (real zr, real zi, real d)

SLCTES

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 successfully sorts eigenvalues.

Parameters



          ZR is REAL


          The numerator of the real part of a complex eigenvalue


          (ZR/D) + i*(ZI/D).



          ZI is REAL


          The numerator of the imaginary part of a complex eigenvalue


          (ZR/D) + i*(ZI).



          D is REAL


          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 slctes.f.

Author

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