cheswapr.f man page

cheswapr.f —

Synopsis

Functions/Subroutines

subroutine cheswapr (UPLO, N, A, LDA, I1, I2)
CHESWAPR applies an elementary permutation on the rows and columns of a Hermitian matrix.

Function/Subroutine Documentation

subroutine cheswapr (characterUPLO, integerN, complex, dimension( lda, n )A, integerLDA, integerI1, integerI2)

CHESWAPR applies an elementary permutation on the rows and columns of a Hermitian matrix.

Purpose:

CHESWAPR applies an elementary permutation on the rows and the columns of
a hermitian 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 COMPLEX 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 CSYTRF.

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:

September 2012

Definition at line 103 of file cheswapr.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

cheswapr(3) is an alias of cheswapr.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK