SRC/dsyconv.f(3)           Library Functions Manual           SRC/dsyconv.f(3)

NAME
       SRC/dsyconv.f

SYNOPSIS
   Functions/Subroutines
       subroutine dsyconv (uplo, way, n, a, lda, ipiv, e, info)
           DSYCONV

Function/Subroutine Documentation
   subroutine dsyconv (character uplo, character way, integer n, double
       precision, dimension( lda, * ) a, integer lda, integer, dimension( * )
       ipiv, double precision, dimension( * ) e, integer info)
       DSYCONV

       Purpose:


            DSYCONV 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.

       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 DOUBLE PRECISION array, dimension (LDA,N)
                     The block diagonal matrix D and the multipliers used to
                     obtain the factor U or L as computed by DSYTRF.

           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 DSYTRF.

           E

                     E is DOUBLE PRECISION array, dimension (N)
                     E stores the supdiagonal/subdiagonal of the symmetric 1-by-1
                     or 2-by-2 block diagonal matrix D in LDLT.

           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.

       Definition at line 113 of file dsyconv.f.

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

LAPACK                          Version 3.12.0                SRC/dsyconv.f(3)