TESTING/EIG/zckcsd.f(3) | Library Functions Manual | TESTING/EIG/zckcsd.f(3) |
NAME
TESTING/EIG/zckcsd.f
SYNOPSIS
Functions/Subroutines
subroutine zckcsd (nm, mval, pval, qval, nmats, iseed,
thresh, mmax, x, xf, u1, u2, v1t, v2t, theta, iwork, work, rwork, nin, nout,
info)
ZCKCSD subroutine zlacsg (m, p, q, theta, iseed, x, ldx, work)
Function/Subroutine Documentation
subroutine zckcsd (integer nm, integer, dimension( * ) mval, integer, dimension( * ) pval, integer, dimension( * ) qval, integer nmats, integer, dimension( 4 ) iseed, double precision thresh, integer mmax, complex*16, dimension( * ) x, complex*16, dimension( * ) xf, complex*16, dimension( * ) u1, complex*16, dimension( * ) u2, complex*16, dimension( * ) v1t, complex*16, dimension( * ) v2t, double precision, dimension( * ) theta, integer, dimension( * ) iwork, complex*16, dimension( * ) work, double precision, dimension( * ) rwork, integer nin, integer nout, integer info)
ZCKCSD
Purpose:
ZCKCSD tests ZUNCSD: the CSD for an M-by-M unitary 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 COMPLEX*16 array, dimension (MMAX*MMAX)
XF
XF is COMPLEX*16 array, dimension (MMAX*MMAX)
U1
U1 is COMPLEX*16 array, dimension (MMAX*MMAX)
U2
U2 is COMPLEX*16 array, dimension (MMAX*MMAX)
V1T
V1T is COMPLEX*16 array, dimension (MMAX*MMAX)
V2T
V2T is COMPLEX*16 array, dimension (MMAX*MMAX)
THETA
THETA is DOUBLE PRECISION array, dimension (MMAX)
IWORK
IWORK is INTEGER array, dimension (MMAX)
WORK
WORK is COMPLEX*16 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 ZLAROR 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 zckcsd.f.
subroutine zlacsg (integer m, integer p, integer q, double precision, dimension( * ) theta, integer, dimension( 4 ) iseed, complex*16, dimension( ldx, * ) x, integer ldx, complex*16, dimension( * ) work)
Definition at line 352 of file zckcsd.f.
Author
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