dlaswp.f man page

dlaswp.f —

Synopsis

Functions/Subroutines

subroutine dlaswp (N, A, LDA, K1, K2, IPIV, INCX)
DLASWP performs a series of row interchanges on a general rectangular matrix.

Function/Subroutine Documentation

subroutine dlaswp (integerN, double precision, dimension( lda, * )A, integerLDA, integerK1, integerK2, integer, dimension( * )IPIV, integerINCX)

DLASWP performs a series of row interchanges on a general rectangular matrix.

Purpose:

DLASWP performs a series of row interchanges on the matrix A.
One row interchange is initiated for each of rows K1 through K2 of A.

Parameters:

N

N is INTEGER
The number of columns of the matrix A.

A

A is DOUBLE PRECISION array, dimension (LDA,N)
On entry, the matrix of column dimension N to which the row
interchanges will be applied.
On exit, the permuted matrix.

LDA

LDA is INTEGER
The leading dimension of the array A.

K1

K1 is INTEGER
The first element of IPIV for which a row interchange will
be done.

K2

K2 is INTEGER
The last element of IPIV for which a row interchange will
be done.

IPIV

IPIV is INTEGER array, dimension (K2*abs(INCX))
The vector of pivot indices.  Only the elements in positions
K1 through K2 of IPIV are accessed.
IPIV(K) = L implies rows K and L are to be interchanged.

INCX

INCX is INTEGER
The increment between successive values of IPIV.  If IPIV
is negative, the pivots are applied in reverse order.

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Further Details:

Modified by
 R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA

Definition at line 115 of file dlaswp.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

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

Sat Nov 16 2013 Version 3.4.2 LAPACK