csyswapr.f man page

csyswapr.f —

Synopsis

Functions/Subroutines

subroutine csyswapr (UPLO, N, A, LDA, I1, I2)
CSYSWAPR

Function/Subroutine Documentation

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

CSYSWAPR

Purpose:

CSYSWAPR 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 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:

November 2011

Definition at line 103 of file csyswapr.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

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

Sat Nov 16 2013 Version 3.4.2 LAPACK