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

NAME

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

SYNOPSIS

Functions/Subroutines


subroutine DCHKEC (thresh, tsterr, nin, nout)
DCHKEC

Function/Subroutine Documentation

subroutine DCHKEC (double precision thresh, logical tsterr, integer nin, integer nout)

DCHKEC

Purpose:

!>
!> DCHKEC tests eigen- condition estimation routines
!>        DLALN2, DLASY2, DLANV2, DLAQTR, DLAEXC,
!>        DTRSYL, DTREXC, DTRSNA, DTRSEN, DTGEXC
!>
!> In all cases, the routine runs through a fixed set of numerical
!> examples, subjects them to various tests, and compares the test
!> results to a threshold THRESH. In addition, DTREXC, DTRSNA and DTRSEN
!> are tested by reading in precomputed examples from a file (on input
!> unit NIN).  Output is written to output unit NOUT.
!>

Parameters

THRESH 

!>          THRESH is DOUBLE PRECISION
!>          Threshold for residual tests.  A computed test ratio passes
!>          the threshold if it is less than THRESH.
!>

TSTERR

!>          TSTERR is LOGICAL
!>          Flag that indicates whether error exits are to be tested.
!>

NIN

!>          NIN is INTEGER
!>          The logical unit number for input.
!>

NOUT

!>          NOUT is INTEGER
!>          The logical unit number for output.
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 75 of file dchkec.f.

Author

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Version 3.12.0 LAPACK