TESTING/LIN/cqrt15.f(3)    Library Functions Manual    TESTING/LIN/cqrt15.f(3)

NAME
       TESTING/LIN/cqrt15.f

SYNOPSIS
   Functions/Subroutines
       subroutine cqrt15 (scale, rksel, m, n, nrhs, a, lda, b, ldb, s, rank,
           norma, normb, iseed, work, lwork)
           CQRT15

Function/Subroutine Documentation
   subroutine cqrt15 (integer scale, integer rksel, integer m, integer n,
       integer nrhs, complex, dimension( lda, * ) a, integer lda, complex,
       dimension( ldb, * ) b, integer ldb, real, dimension( * ) s, integer
       rank, real norma, real normb, integer, dimension( 4 ) iseed, complex,
       dimension( lwork ) work, integer lwork)
       CQRT15

       Purpose:


            CQRT15 generates a matrix with full or deficient rank and of various
            norms.

       Parameters
           SCALE

                     SCALE is INTEGER
                     SCALE = 1: normally scaled matrix
                     SCALE = 2: matrix scaled up
                     SCALE = 3: matrix scaled down

           RKSEL

                     RKSEL is INTEGER
                     RKSEL = 1: full rank matrix
                     RKSEL = 2: rank-deficient matrix

           M

                     M is INTEGER
                     The number of rows of the matrix A.

           N

                     N is INTEGER
                     The number of columns of A.

           NRHS

                     NRHS is INTEGER
                     The number of columns of B.

           A

                     A is COMPLEX array, dimension (LDA,N)
                     The M-by-N matrix A.

           LDA

                     LDA is INTEGER
                     The leading dimension of the array A.

           B

                     B is COMPLEX array, dimension (LDB, NRHS)
                     A matrix that is in the range space of matrix A.

           LDB

                     LDB is INTEGER
                     The leading dimension of the array B.

           S

                     S is REAL array, dimension MIN(M,N)
                     Singular values of A.

           RANK

                     RANK is INTEGER
                     number of nonzero singular values of A.

           NORMA

                     NORMA is REAL
                     one-norm norm of A.

           NORMB

                     NORMB is REAL
                     one-norm norm of B.

           ISEED

                     ISEED is integer array, dimension (4)
                     seed for random number generator.

           WORK

                     WORK is COMPLEX array, dimension (LWORK)

           LWORK

                     LWORK is INTEGER
                     length of work space required.
                     LWORK >= MAX(M+MIN(M,N),NRHS*MIN(M,N),2*N+M)

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 147 of file cqrt15.f.

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

LAPACK                          Version 3.12.0         TESTING/LIN/cqrt15.f(3)