Provided by: liblapack-doc_3.3.1-1_all bug

NAME

       LAPACK-3 - convert A given by TRF into L and D and vice-versa

SYNOPSIS

       SUBROUTINE CSYCONV( UPLO, WAY, N, A, LDA, IPIV, WORK, INFO )

           CHARACTER       UPLO, WAY

           INTEGER         INFO, LDA, N

           INTEGER         IPIV( * )

           COMPLEX         A( LDA, * ), WORK( * )

PURPOSE

       CSYCONV convert A given by TRF into L and D and vice-versa.
        Get Non-diag elements of D (returned in workspace) and
        apply or reverse permutation done in TRF.

ARGUMENTS

        UPLO    (input) 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     (input) CHARACTER*1
                = 'C': Convert
                = 'R': Revert

        N       (input) INTEGER
                The order of the matrix A.  N >= 0.

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

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

        IPIV    (input) INTEGER array, dimension (N)
                Details of the interchanges and the block structure of D
                as determined by CSYTRF.
                The length of WORK.  LWORK >=1.
                LWORK = N
                If LWORK = -1, then a workspace query is assumed; the routine
                only calculates the optimal size of the WORK array, returns
                this value as the first entry of the WORK array, and no error
                message related to LWORK is issued by XERBLA.

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

 LAPACK PROTOTYPE routine (version 3.2.2)   April 2011                           CSYCONV(3lapack)