BLAS/SRC/dswap.f(3)

NAME
BLAS/SRC/dswap.f

SYNOPSIS

  Functions/Subroutines
subroutine dswap (n, dx, incx, dy, incy)
DSWAP

Function/Subroutine Documentation

  subroutine dswap (integer n, double precision, dimension(*) dx, integer incx, double precision, dimension(*) dy, integer incy)

DSWAP

Purpose:

        DSWAP interchanges two vectors.
        uses unrolled loops for increments equal to 1.

Parameters
    N

              N is INTEGER
             number of elements in input vector(s)

    DX

              DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

    INCX

              INCX is INTEGER
             storage spacing between elements of DX

    DY

              DY is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCY ) )

    INCY

              INCY is INTEGER
             storage spacing between elements of DY

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Further Details:

         jack dongarra, linpack, 3/11/78.
         modified 12/3/93, array(1) declarations changed to array(*)

Definition at line 81 of file dswap.f.

Author

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