1DLASWP(1)           LAPACK auxiliary routine (version 3.2)           DLASWP(1)
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NAME

6       DLASWP - performs a series of row interchanges on the matrix A
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SYNOPSIS

9       SUBROUTINE DLASWP( N, A, LDA, K1, K2, IPIV, INCX )
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11           INTEGER        INCX, K1, K2, LDA, N
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13           INTEGER        IPIV( * )
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15           DOUBLE         PRECISION A( LDA, * )
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PURPOSE

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

22       N       (input) INTEGER
23               The number of columns of the matrix A.
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25       A       (input/output) DOUBLE PRECISION array, dimension (LDA,N)
26               On entry, the matrix of column dimension N  to  which  the  row
27               interchanges will be applied.  On exit, the permuted matrix.
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29       LDA     (input) INTEGER
30               The leading dimension of the array A.
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32       K1      (input) INTEGER
33               The  first  element of IPIV for which a row interchange will be
34               done.
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36       K2      (input) INTEGER
37               The last element of IPIV for which a row  interchange  will  be
38               done.
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40       IPIV    (input) INTEGER array, dimension (K2*abs(INCX))
41               The vector of pivot indices.  Only the elements in positions K1
42               through K2 of IPIV are accessed.  IPIV(K) = L  implies  rows  K
43               and L are to be interchanged.
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45       INCX    (input) INTEGER
46               The  increment  between  successive values of IPIV.  If IPIV is
47               negative, the pivots are applied in reverse order.
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FURTHER DETAILS

50       Modified by
51        R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA
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55 LAPACK auxiliary routine (versionNo3v.e2m)ber 2008                       DLASWP(1)