1DLASWP(1)           LAPACK auxiliary routine (version 3.1)           DLASWP(1)
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NAME

6       DLASWP - 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

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

51       Modified by
52        R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA
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57 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       DLASWP(1)