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 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 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 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 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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