Scroll to navigation

slaswp.f(3) LAPACK slaswp.f(3)

NAME

slaswp.f

SYNOPSIS

Functions/Subroutines


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

Function/Subroutine Documentation

subroutine slaswp (integer N, real, dimension( lda, * ) A, integer LDA, integer K1, integer K2, integer, dimension( * ) IPIV, integer INCX)

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

Purpose:


SLASWP 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 REAL 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
(K2-K1+1) is the number of elements of IPIV for which a row
interchange will be done.

IPIV


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

INCX


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

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

June 2017

Further Details:


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

Definition at line 117 of file slaswp.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Tue Nov 14 2017 Version 3.8.0