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RedHat 9 (Linux i386) - man page for dlaswp (redhat section l)

DLASWP(l)						  )						    DLASWP(l)

NAME
DLASWP - perform a series of row interchanges on the matrix A
SYNOPSIS
SUBROUTINE DLASWP( N, A, LDA, K1, K2, IPIV, INCX ) INTEGER INCX, K1, K2, LDA, N INTEGER IPIV( * ) DOUBLE PRECISION A( LDA, * )
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.
ARGUMENTS
N (input) INTEGER The number of columns of the matrix A. A (input/output) 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 (input) INTEGER The leading dimension of the array A. K1 (input) INTEGER The first element of IPIV for which a row interchange will be done. K2 (input) INTEGER The last element of IPIV for which a row interchange will be done. IPIV (input) INTEGER array, dimension (M*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 (input) INTEGER The increment between successive values of IPIV. If IPIV is negative, the pivots are applied in reverse order.
FURTHER DETAILS
Modified by R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA LAPACK version 3.0 15 June 2000 DLASWP(l)


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