TESTING/EIG/zchkec.f(3)

NAME
TESTING/EIG/zchkec.f

SYNOPSIS

  Functions/Subroutines
subroutine zchkec (thresh, tsterr, nin, nout)
ZCHKEC

Function/Subroutine Documentation

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

ZCHKEC

Purpose:

     ZCHKEC tests eigen- condition estimation routines
            ZTRSYL, CTREXC, CTRSNA, CTRSEN
     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, ZTRSNA and CTRSEN 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 74 of file zchkec.f.

Author

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