TESTING/EIG/zbdt02.f(3)    Library Functions Manual    TESTING/EIG/zbdt02.f(3)

NAME
       TESTING/EIG/zbdt02.f

SYNOPSIS
   Functions/Subroutines
       subroutine zbdt02 (m, n, b, ldb, c, ldc, u, ldu, work, rwork, resid)
           ZBDT02

Function/Subroutine Documentation
   subroutine zbdt02 (integer m, integer n, complex*16, dimension( ldb, * ) b,
       integer ldb, complex*16, dimension( ldc, * ) c, integer ldc,
       complex*16, dimension( ldu, * ) u, integer ldu, complex*16, dimension(
       * ) work, double precision, dimension( * ) rwork, double precision
       resid)
       ZBDT02

       Purpose:


           !>
           !> ZBDT02 tests the change of basis C = U**H * B by computing the
           !> residual
           !>
           !>    RESID = norm(B - U * C) / ( max(m,n) * norm(B) * EPS ),
           !>
           !> where B and C are M by N matrices, U is an M by M orthogonal matrix,
           !> and EPS is the machine precision.
           !>

       Parameters
           M

           !>          M is INTEGER
           !>          The number of rows of the matrices B and C and the order of
           !>          the matrix Q.
           !>

           N

           !>          N is INTEGER
           !>          The number of columns of the matrices B and C.
           !>

           B

           !>          B is COMPLEX*16 array, dimension (LDB,N)
           !>          The m by n matrix B.
           !>

           LDB

           !>          LDB is INTEGER
           !>          The leading dimension of the array B.  LDB >= max(1,M).
           !>

           C

           !>          C is COMPLEX*16 array, dimension (LDC,N)
           !>          The m by n matrix C, assumed to contain U**H * B.
           !>

           LDC

           !>          LDC is INTEGER
           !>          The leading dimension of the array C.  LDC >= max(1,M).
           !>

           U

           !>          U is COMPLEX*16 array, dimension (LDU,M)
           !>          The m by m orthogonal matrix U.
           !>

           LDU

           !>          LDU is INTEGER
           !>          The leading dimension of the array U.  LDU >= max(1,M).
           !>

           WORK

           !>          WORK is COMPLEX*16 array, dimension (M)
           !>

           RWORK

           !>          RWORK is DOUBLE PRECISION array, dimension (M)
           !>

           RESID

           !>          RESID is DOUBLE PRECISION
           !>          RESID = norm(B - U * C) / ( max(m,n) * norm(B) * EPS ),
           !>

       Author
           Univ. of Tennessee


           Univ. of California Berkeley


           Univ. of Colorado Denver


           NAG Ltd.

       Definition at line 118 of file zbdt02.f.

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

LAPACK                          Version 3.12.0         TESTING/EIG/zbdt02.f(3)