TESTING/LIN/dchktz.f(3)

NAME
TESTING/LIN/dchktz.f

SYNOPSIS

  Functions/Subroutines
subroutine dchktz (dotype, nm, mval, nn, nval, thresh, tsterr, a, copya, s, tau, work, nout)
DCHKTZ

Function/Subroutine Documentation

  subroutine dchktz (logical, dimension( * ) dotype, integer nm, integer, dimension( * ) mval, integer nn, integer, dimension( * ) nval, double precision thresh, logical tsterr, double precision, dimension( * ) a, double precision, dimension( * ) copya, double precision, dimension( * ) s, double precision, dimension( * ) tau, double precision, dimension( * ) work, integer nout)

DCHKTZ

Purpose:

     DCHKTZ tests DTZRZF.

Parameters
    DOTYPE

              DOTYPE is LOGICAL array, dimension (NTYPES)
              The matrix types to be used for testing.  Matrices of type j
              (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =
              .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.

    NM

              NM is INTEGER
              The number of values of M contained in the vector MVAL.

    MVAL

              MVAL is INTEGER array, dimension (NM)
              The values of the matrix row dimension M.

    NN

              NN is INTEGER
              The number of values of N contained in the vector NVAL.

    NVAL

              NVAL is INTEGER array, dimension (NN)
              The values of the matrix column dimension N.

    THRESH

              THRESH is DOUBLE PRECISION
              The threshold value for the test ratios.  A result is
              included in the output file if RESULT >= THRESH.  To have
              every test ratio printed, use THRESH = 0.

    TSTERR

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

    A

              A is DOUBLE PRECISION array, dimension (MMAX*NMAX)
              where MMAX is the maximum value of M in MVAL and NMAX is the
              maximum value of N in NVAL.

    COPYA

              COPYA is DOUBLE PRECISION array, dimension (MMAX*NMAX)

    S

              S is DOUBLE PRECISION array, dimension
                          (min(MMAX,NMAX))

    TAU

              TAU is DOUBLE PRECISION array, dimension (MMAX)

    WORK

              WORK is DOUBLE PRECISION array, dimension
                          (MMAX*NMAX + 4*NMAX + MMAX)

    NOUT

              NOUT is INTEGER
              The unit number for output.

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 130 of file dchktz.f.

Author

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