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

NAME
       SRC/ssyswapr.f

SYNOPSIS
   Functions/Subroutines
       subroutine ssyswapr (uplo, n, a, lda, i1, i2)
           SSYSWAPR applies an elementary permutation on the rows and columns
           of a symmetric matrix.

Function/Subroutine Documentation
   subroutine ssyswapr (character uplo, integer n, real, dimension( lda, * )
       a, integer lda, integer i1, integer i2)
       SSYSWAPR applies an elementary permutation on the rows and columns of a
       symmetric matrix.

       Purpose:


            SSYSWAPR applies an elementary permutation on the rows and the columns of
            a symmetric matrix.

       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.

           N

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

           A

                     A is REAL array, dimension (LDA,*)
                     On entry, the N-by-N matrix A. On exit, the permuted matrix
                     where the rows I1 and I2 and columns I1 and I2 are interchanged.
                     If UPLO = 'U', the interchanges are applied to the upper
                     triangular part and the strictly lower triangular part of A is
                     not referenced; if UPLO = 'L', the interchanges are applied to
                     the lower triangular part and the part of A above the diagonal
                     is not referenced.

           LDA

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

           I1

                     I1 is INTEGER
                     Index of the first row to swap

           I2

                     I2 is INTEGER
                     Index of the second row to swap

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 99 of file ssyswapr.f.

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

LAPACK                          Version 3.12.0               SRC/ssyswapr.f(3)