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

NAME
       SRC/dlauum.f

SYNOPSIS
   Functions/Subroutines
       subroutine dlauum (uplo, n, a, lda, info)
           DLAUUM computes the product UUH or LHL, where U and L are upper or
           lower triangular matrices (blocked algorithm).

Function/Subroutine Documentation
   subroutine dlauum (character uplo, integer n, double precision, dimension(
       lda, * ) a, integer lda, integer info)
       DLAUUM computes the product UUH or LHL, where U and L are upper or
       lower triangular matrices (blocked algorithm).

       Purpose:


            DLAUUM computes the product U * U**T or L**T * L, where the triangular
            factor U or L is stored in the upper or lower triangular part of
            the array A.

            If UPLO = 'U' or 'u' then the upper triangle of the result is stored,
            overwriting the factor U in A.
            If UPLO = 'L' or 'l' then the lower triangle of the result is stored,
            overwriting the factor L in A.

            This is the blocked form of the algorithm, calling Level 3 BLAS.

       Parameters
           UPLO

                     UPLO is CHARACTER*1
                     Specifies whether the triangular factor stored in the array A
                     is upper or lower triangular:
                     = 'U':  Upper triangular
                     = 'L':  Lower triangular

           N

                     N is INTEGER
                     The order of the triangular factor U or L.  N >= 0.

           A

                     A is DOUBLE PRECISION array, dimension (LDA,N)
                     On entry, the triangular factor U or L.
                     On exit, if UPLO = 'U', the upper triangle of A is
                     overwritten with the upper triangle of the product U * U**T;
                     if UPLO = 'L', the lower triangle of A is overwritten with
                     the lower triangle of the product L**T * L.

           LDA

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

           INFO

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

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 101 of file dlauum.f.

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

LAPACK                          Version 3.12.0                 SRC/dlauum.f(3)