NAME

       zsyconv.f -

SYNOPSIS

   Functions/Subroutines
       subroutine zsyconv (UPLO, WAY, N, A, LDA, IPIV, WORK, INFO)
           ZSYCONV

Function/Subroutine Documentation

   subroutine zsyconv (characterUPLO, characterWAY, integerN, complex*16, dimension( lda, * )A,
       integerLDA, integer, dimension( * )IPIV, complex*16, dimension( * )WORK, integerINFO)
       ZSYCONV

       Purpose:

            ZSYCONV converts A given by ZHETRF into L and D or vice-versa.
            Get nondiagonal elements of D (returned in workspace) and
            apply or reverse permutation done in TRF.

       Parameters:
           UPLO

                     UPLO is CHARACTER*1
                     Specifies whether the details of the factorization are stored
                     as an upper or lower triangular matrix.
                     = 'U':  Upper triangular, form is A = U*D*U**T;
                     = 'L':  Lower triangular, form is A = L*D*L**T.

           WAY

                     WAY is CHARACTER*1
                     = 'C': Convert
                     = 'R': Revert

           N

                     N is INTEGER
                     The order of the matrix A.  N >= 0.

           A

                     A is COMPLEX*16 array, dimension (LDA,N)
                     The block diagonal matrix D and the multipliers used to
                     obtain the factor U or L as computed by ZSYTRF.

           LDA

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

           IPIV

                     IPIV is INTEGER array, dimension (N)
                     Details of the interchanges and the block structure of D
                     as determined by ZSYTRF.

           WORK

                     WORK is COMPLEX*16 array, dimension (N)

           INFO

                     INFO is INTEGER
                     = 0:  successful exit
                     < 0:  if INFO = -i, the i-th argument had an illegal value

       Author:
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Date:
           November 2011

       Definition at line 113 of file zsyconv.f.

Author

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