LAPACK  3.4.2
LAPACK: Linear Algebra PACKage
 All Files Functions Groups
slaswp.f File Reference

Go to the source code of this file.

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.

Download SLASWP + dependencies [TGZ] [ZIP] [TXT]
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:
[in]N
          N is INTEGER
          The number of columns of the matrix A.
[in,out]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.
[in]LDA
          LDA is INTEGER
          The leading dimension of the array A.
[in]K1
          K1 is INTEGER
          The first element of IPIV for which a row interchange will
          be done.
[in]K2
          K2 is INTEGER
          The last element of IPIV for which a row interchange will
          be done.
[in]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.
[in]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 slaswp.f.

Here is the caller graph for this function: