TESTING/LIN/zsyt01.f(3)    Library Functions Manual    TESTING/LIN/zsyt01.f(3)

NAME
       TESTING/LIN/zsyt01.f

SYNOPSIS
   Functions/Subroutines
       subroutine zsyt01 (uplo, n, a, lda, afac, ldafac, ipiv, c, ldc, rwork,
           resid)
           ZSYT01

Function/Subroutine Documentation
   subroutine zsyt01 (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)
       ZSYT01

       Purpose:


           !>
           !> ZSYT01 reconstructs a complex symmetric 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 transpose of L, and U' is the transpose of U.
           !>

       Parameters
           UPLO

           !>          UPLO is CHARACTER*1
           !>          Specifies whether the upper or lower triangular part of the
           !>          complex symmetric 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 complex symmetric 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 ZSYTRF.
           !>

           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 ZSYTRF.
           !>

           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 123 of file zsyt01.f.

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

LAPACK                          Version 3.12.0         TESTING/LIN/zsyt01.f(3)