.TH "TESTING/EIG/dckcsd.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
TESTING/EIG/dckcsd.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBdckcsd\fP (nm, mval, pval, qval, nmats, iseed, thresh, mmax, x, xf, u1, u2, v1t, v2t, theta, iwork, work, rwork, nin, nout, info)"
.br
.RI "\fBDCKCSD\fP "
.ti -1c
.RI "subroutine \fBdlacsg\fP (m, p, q, theta, iseed, x, ldx, work)"
.br
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "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)"

.PP
\fBDCKCSD\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 DCKCSD tests DORCSD:
        the CSD for an M-by-M orthogonal matrix X partitioned as
        [ X11 X12; X21 X22 ]\&. X11 is P-by-Q\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fINM\fP 
.PP
.nf
          NM is INTEGER
          The number of values of M contained in the vector MVAL\&.
.fi
.PP
.br
\fIMVAL\fP 
.PP
.nf
          MVAL is INTEGER array, dimension (NM)
          The values of the matrix row dimension M\&.
.fi
.PP
.br
\fIPVAL\fP 
.PP
.nf
          PVAL is INTEGER array, dimension (NM)
          The values of the matrix row dimension P\&.
.fi
.PP
.br
\fIQVAL\fP 
.PP
.nf
          QVAL is INTEGER array, dimension (NM)
          The values of the matrix column dimension Q\&.
.fi
.PP
.br
\fINMATS\fP 
.PP
.nf
          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\&.
.fi
.PP
.br
\fIISEED\fP 
.PP
.nf
          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\&.
.fi
.PP
.br
\fITHRESH\fP 
.PP
.nf
          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\&.
.fi
.PP
.br
\fIMMAX\fP 
.PP
.nf
          MMAX is INTEGER
          The maximum value permitted for M, used in dimensioning the
          work arrays\&.
.fi
.PP
.br
\fIX\fP 
.PP
.nf
          X is DOUBLE PRECISION array, dimension (MMAX*MMAX)
.fi
.PP
.br
\fIXF\fP 
.PP
.nf
          XF is DOUBLE PRECISION array, dimension (MMAX*MMAX)
.fi
.PP
.br
\fIU1\fP 
.PP
.nf
          U1 is DOUBLE PRECISION array, dimension (MMAX*MMAX)
.fi
.PP
.br
\fIU2\fP 
.PP
.nf
          U2 is DOUBLE PRECISION array, dimension (MMAX*MMAX)
.fi
.PP
.br
\fIV1T\fP 
.PP
.nf
          V1T is DOUBLE PRECISION array, dimension (MMAX*MMAX)
.fi
.PP
.br
\fIV2T\fP 
.PP
.nf
          V2T is DOUBLE PRECISION array, dimension (MMAX*MMAX)
.fi
.PP
.br
\fITHETA\fP 
.PP
.nf
          THETA is DOUBLE PRECISION array, dimension (MMAX)
.fi
.PP
.br
\fIIWORK\fP 
.PP
.nf
          IWORK is INTEGER array, dimension (MMAX)
.fi
.PP
.br
\fIWORK\fP 
.PP
.nf
          WORK is DOUBLE PRECISION array
.fi
.PP
.br
\fIRWORK\fP 
.PP
.nf
          RWORK is DOUBLE PRECISION array
.fi
.PP
.br
\fININ\fP 
.PP
.nf
          NIN is INTEGER
          The unit number for input\&.
.fi
.PP
.br
\fINOUT\fP 
.PP
.nf
          NOUT is INTEGER
          The unit number for output\&.
.fi
.PP
.br
\fIINFO\fP 
.PP
.nf
          INFO is INTEGER
          = 0 :  successful exit
          > 0 :  If DLAROR returns an error code, the absolute value
                 of it is returned\&.
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

.PP
Definition at line \fB181\fP of file \fBdckcsd\&.f\fP\&.
.SS "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)"

.PP
Definition at line \fB350\fP of file \fBdckcsd\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.