TESTING/EIG/dckcsd.f(3)    Library Functions Manual    TESTING/EIG/dckcsd.f(3)

NAME
       TESTING/EIG/dckcsd.f

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

Function/Subroutine Documentation
   subroutine dckcsd (integer nm, integer, dimension( * ) mval, integer,
       dimension( * ) pval, integer, dimension( * ) qval, integer nmats,
       integer, dimension( 4 ) iseed, double precision thresh, integer mmax,
       double precision, dimension( * ) x, double precision, dimension( * )
       xf, double precision, dimension( * ) u1, double precision, dimension( *
       ) u2, double precision, dimension( * ) v1t, double precision,
       dimension( * ) v2t, double precision, dimension( * ) theta, integer,
       dimension( * ) iwork, double precision, dimension( * ) work, double
       precision, dimension( * ) rwork, integer nin, integer nout, integer
       info)
       DCKCSD

       Purpose:


            DCKCSD tests DORCSD:
                   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 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.

           MMAX

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

           X

                     X is DOUBLE PRECISION array, dimension (MMAX*MMAX)

           XF

                     XF is DOUBLE PRECISION array, dimension (MMAX*MMAX)

           U1

                     U1 is DOUBLE PRECISION array, dimension (MMAX*MMAX)

           U2

                     U2 is DOUBLE PRECISION array, dimension (MMAX*MMAX)

           V1T

                     V1T is DOUBLE PRECISION array, dimension (MMAX*MMAX)

           V2T

                     V2T is DOUBLE PRECISION array, dimension (MMAX*MMAX)

           THETA

                     THETA is DOUBLE PRECISION array, dimension (MMAX)

           IWORK

                     IWORK is INTEGER array, dimension (MMAX)

           WORK

                     WORK is DOUBLE PRECISION array

           RWORK

                     RWORK is DOUBLE PRECISION 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 DLAROR 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 dckcsd.f.

   subroutine dlacsg (integer m, integer p, integer q, double precision,
       dimension( * ) theta, integer, dimension( 4 ) iseed, double precision,
       dimension( ldx, * ) x, integer ldx, double precision, dimension( * )
       work)
       Definition at line 350 of file dckcsd.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0         TESTING/EIG/dckcsd.f(3)