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

NAME
       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
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0         TESTING/EIG/dchkec.f(3)