TESTING/EIG/sckcsd.f(3)

NAME
TESTING/EIG/sckcsd.f

SYNOPSIS

  Functions/Subroutines
subroutine sckcsd (nm, mval, pval, qval, nmats, iseed, thresh, mmax, x, xf, u1, u2, v1t, v2t, theta, iwork, work, rwork, nin, nout, info)
SCKCSD
subroutine slacsg (m, p, q, theta, iseed, x, ldx, work)

Function/Subroutine Documentation

  subroutine sckcsd (integer nm, integer, dimension( * ) mval, integer, dimension( * ) pval, integer, dimension( * ) qval, integer nmats, integer, dimension( 4 ) iseed, real thresh, integer mmax, real, dimension( * ) x, real, dimension( * ) xf, real, dimension( * ) u1, real, dimension( * ) u2, real, dimension( * ) v1t, real, dimension( * ) v2t, real, dimension( * ) theta, integer, dimension( * ) iwork, real, dimension( * ) work, real, dimension( * ) rwork, integer nin, integer nout, integer info)

SCKCSD

Purpose:

     SCKCSD tests SORCSD:
            the CSD for an M-by-M orthogonal matrix X partitioned as
            [ X11 X12; X21 X22 ]. X11 is P-by-Q.

Parameters
    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.

    PVAL

              PVAL is INTEGER array, dimension (NM)
              The values of the matrix row dimension P.

    QVAL

              QVAL is INTEGER array, dimension (NM)
              The values of the matrix column dimension Q.

    NMATS

              NMATS is INTEGER
              The number of matrix types to be tested for each combination
              of matrix dimensions.  If NMATS >= NTYPES (the maximum
              number of matrix types), then all the different types are
              generated for testing.  If NMATS < NTYPES, another input line
              is read to get the numbers of the matrix types to be used.

    ISEED

              ISEED is INTEGER array, dimension (4)
              On entry, the seed of the random number generator.  The array
              elements should be between 0 and 4095, otherwise they will be
              reduced mod 4096, and ISEED(4) must be odd.
              On exit, the next seed in the random number sequence after
              all the test matrices have been generated.

    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.

    MMAX

              MMAX is INTEGER
              The maximum value permitted for M, used in dimensioning the
              work arrays.

    X

              X is REAL array, dimension (MMAX*MMAX)

    XF

              XF is REAL array, dimension (MMAX*MMAX)

    U1

              U1 is REAL array, dimension (MMAX*MMAX)

    U2

              U2 is REAL array, dimension (MMAX*MMAX)

    V1T

              V1T is REAL array, dimension (MMAX*MMAX)

    V2T

              V2T is REAL array, dimension (MMAX*MMAX)

    THETA

              THETA is REAL array, dimension (MMAX)

    IWORK

              IWORK is INTEGER array, dimension (MMAX)

    WORK

              WORK is REAL array

    RWORK

              RWORK is REAL array

    NIN

              NIN is INTEGER
              The unit number for input.

    NOUT

              NOUT is INTEGER
              The unit number for output.

    INFO

              INFO is INTEGER
              = 0 :  successful exit
              > 0 :  If SLAROR returns an error code, the absolute value
                     of it is returned.

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 181 of file sckcsd.f.

  subroutine slacsg (integer m, integer p, integer q, real, dimension( * ) theta, integer, dimension( 4 ) iseed, real, dimension( ldx, * ) x, integer ldx, real, dimension( * ) work)

Definition at line 349 of file sckcsd.f.

Author

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