dsyswapr.f - Man Page
Synopsis
Functions/Subroutines
subroutine dsyswapr (UPLO, N, A, LDA, I1, I2)
DSYSWAPR applies an elementary permutation on the rows and columns of a symmetric matrix.
Function/Subroutine Documentation
subroutine dsyswapr (character UPLO, integer N, double precision, dimension( lda, n ) A, integer LDA, integer I1, integer I2)
DSYSWAPR applies an elementary permutation on the rows and columns of a symmetric matrix.
Purpose:
DSYSWAPR 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 DOUBLE PRECISION array, dimension (LDA,N) On entry, the NB diagonal matrix D and the multipliers used to obtain the factor U or L as computed by DSYTRF. On exit, if INFO = 0, the (symmetric) inverse of the original matrix. If UPLO = 'U', the upper triangular part of the inverse is formed and the part of A below the diagonal is not referenced; if UPLO = 'L' the lower triangular part of the inverse is formed 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.
- Date:
December 2016
Definition at line 104 of file dsyswapr.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Referenced By
The man page dsyswapr(3) is an alias of dsyswapr.f(3).
Tue Nov 14 2017 Version 3.8.0 LAPACK