TESTING/LIN/zhet01.f(3)    Library Functions Manual    TESTING/LIN/zhet01.f(3)

NAME
       TESTING/LIN/zhet01.f

SYNOPSIS
   Functions/Subroutines
       subroutine zhet01 (uplo, n, a, lda, afac, ldafac, ipiv, c, ldc, rwork,
           resid)
           ZHET01

Function/Subroutine Documentation
   subroutine zhet01 (character uplo, integer n, complex*16, dimension( lda, *
       ) a, integer lda, complex*16, dimension( ldafac, * ) afac, integer
       ldafac, integer, dimension( * ) ipiv, complex*16, dimension( ldc, * )
       c, integer ldc, double precision, dimension( * ) rwork, double
       precision resid)
       ZHET01

       Purpose:


            ZHET01 reconstructs a Hermitian indefinite matrix A from its
            block L*D*L' or U*D*U' factorization and computes the residual
               norm( C - A ) / ( N * norm(A) * EPS ),
            where C is the reconstructed matrix, EPS is the machine epsilon,
            L' is the conjugate transpose of L, and U' is the conjugate transpose
            of U.

       Parameters
           UPLO

                     UPLO is CHARACTER*1
                     Specifies whether the upper or lower triangular part of the
                     Hermitian matrix A is stored:
                     = 'U':  Upper triangular
                     = 'L':  Lower triangular

           N

                     N is INTEGER
                     The number of rows and columns of the matrix A.  N >= 0.

           A

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

           LDA

                     LDA is INTEGER
                     The leading dimension of the array A.  LDA >= max(1,N)

           AFAC

                     AFAC is COMPLEX*16 array, dimension (LDAFAC,N)
                     The factored form of the matrix A.  AFAC contains the block
                     diagonal matrix D and the multipliers used to obtain the
                     factor L or U from the block L*D*L' or U*D*U' factorization
                     as computed by ZHETRF.

           LDAFAC

                     LDAFAC is INTEGER
                     The leading dimension of the array AFAC.  LDAFAC >= max(1,N).

           IPIV

                     IPIV is INTEGER array, dimension (N)
                     The pivot indices from ZHETRF.

           C

                     C is COMPLEX*16 array, dimension (LDC,N)

           LDC

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

           RWORK

                     RWORK is DOUBLE PRECISION array, dimension (N)

           RESID

                     RESID is DOUBLE PRECISION
                     If UPLO = 'L', norm(L*D*L' - A) / ( N * norm(A) * EPS )
                     If UPLO = 'U', norm(U*D*U' - A) / ( N * norm(A) * EPS )

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 124 of file zhet01.f.

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

LAPACK                          Version 3.12.0         TESTING/LIN/zhet01.f(3)