LAPACK
3.4.2
LAPACK: Linear Algebra PACKage

Go to the source code of this file.
Functions/Subroutines  
subroutine  dlaswp (N, A, LDA, K1, K2, IPIV, INCX) 
DLASWP performs a series of row interchanges on a general rectangular matrix. 
subroutine dlaswp  (  integer  N, 
double precision, dimension( lda, * )  A,  
integer  LDA,  
integer  K1,  
integer  K2,  
integer, dimension( * )  IPIV,  
integer  INCX  
) 
DLASWP performs a series of row interchanges on a general rectangular matrix.
Download DLASWP + dependencies [TGZ] [ZIP] [TXT]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.
[in]  N  N is INTEGER The number of columns of the matrix A. 
[in,out]  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. 
[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. 
Modified by R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA
Definition at line 115 of file dlaswp.f.