TESTING/EIG/zget54.f(3)

NAME
TESTING/EIG/zget54.f

SYNOPSIS

  Functions/Subroutines
subroutine zget54 (n, a, lda, b, ldb, s, lds, t, ldt, u, ldu, v, ldv, work, result)
ZGET54

Function/Subroutine Documentation

  subroutine zget54 (integer n, complex*16, dimension( lda, * ) a, integer lda, complex*16, dimension( ldb, * ) b, integer ldb, complex*16, dimension( lds, * ) s, integer lds, complex*16, dimension( ldt, * ) t, integer ldt, complex*16, dimension( ldu, * ) u, integer ldu, complex*16, dimension( ldv, * ) v, integer ldv, complex*16, dimension( * ) work, double precision result)

ZGET54

Purpose:

     ZGET54 checks a generalized decomposition of the form
              A = U*S*V'  and B = U*T* V'
     where ' means conjugate transpose and U and V are unitary.
     Specifically,
       RESULT = ||( A - U*S*V', B - U*T*V' )|| / (||( A, B )||*n*ulp )

Parameters
    N

              N is INTEGER
              The size of the matrix.  If it is zero, DGET54 does nothing.
              It must be at least zero.

    A

              A is COMPLEX*16 array, dimension (LDA, N)
              The original (unfactored) matrix A.

    LDA

              LDA is INTEGER
              The leading dimension of A.  It must be at least 1
              and at least N.

    B

              B is COMPLEX*16 array, dimension (LDB, N)
              The original (unfactored) matrix B.

    LDB

              LDB is INTEGER
              The leading dimension of B.  It must be at least 1
              and at least N.

    S

              S is COMPLEX*16 array, dimension (LDS, N)
              The factored matrix S.

    LDS

              LDS is INTEGER
              The leading dimension of S.  It must be at least 1
              and at least N.

    T

              T is COMPLEX*16 array, dimension (LDT, N)
              The factored matrix T.

    LDT

              LDT is INTEGER
              The leading dimension of T.  It must be at least 1
              and at least N.

    U

              U is COMPLEX*16 array, dimension (LDU, N)
              The orthogonal matrix on the left-hand side in the
              decomposition.

    LDU

              LDU is INTEGER
              The leading dimension of U.  LDU must be at least N and
              at least 1.

    V

              V is COMPLEX*16 array, dimension (LDV, N)
              The orthogonal matrix on the left-hand side in the
              decomposition.

    LDV

              LDV is INTEGER
              The leading dimension of V.  LDV must be at least N and
              at least 1.

    WORK

              WORK is COMPLEX*16 array, dimension (3*N**2)

    RESULT

              RESULT is DOUBLE PRECISION
              The value RESULT, It is currently limited to 1/ulp, to
              avoid overflow. Errors are flagged by RESULT=10/ulp.

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 154 of file zget54.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.