TESTING/LIN/schktb.f(3)

NAME
TESTING/LIN/schktb.f

SYNOPSIS

  Functions/Subroutines
subroutine schktb (dotype, nn, nval, nns, nsval, thresh, tsterr, nmax, ab, ainv, b, x, xact, work, rwork, iwork, nout)
SCHKTB

Function/Subroutine Documentation

  subroutine schktb (logical, dimension( * ) dotype, integer nn, integer, dimension( * ) nval, integer nns, integer, dimension( * ) nsval, real thresh, logical tsterr, integer nmax, real, dimension( * ) ab, real, dimension( * ) ainv, real, dimension( * ) b, real, dimension( * ) x, real, dimension( * ) xact, real, dimension( * ) work, real, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)

SCHKTB

Purpose:

     SCHKTB tests STBTRS, -RFS, and -CON, and SLATBS.

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.

    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.

    NNS

              NNS is INTEGER
              The number of values of NRHS contained in the vector NSVAL.

    NSVAL

              NSVAL is INTEGER array, dimension (NNS)
              The values of the number of right hand sides NRHS.

    THRESH

              THRESH is REAL
              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.

    NMAX

              NMAX is INTEGER
              The leading dimension of the work arrays.
              NMAX >= the maximum value of N in NVAL.

    AB

              AB is REAL array, dimension (NMAX*NMAX)

    AINV

              AINV is REAL array, dimension (NMAX*NMAX)

    B

              B is REAL array, dimension (NMAX*NSMAX)
              where NSMAX is the largest entry in NSVAL.

    X

              X is REAL array, dimension (NMAX*NSMAX)

    XACT

              XACT is REAL array, dimension (NMAX*NSMAX)

    WORK

              WORK is REAL array, dimension
                          (NMAX*max(3,NSMAX))

    RWORK

              RWORK is REAL array, dimension
                          (max(NMAX,2*NSMAX))

    IWORK

              IWORK is INTEGER array, dimension (NMAX)

    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 152 of file schktb.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.