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DOUBLE PRECISION FUNCTION slDVDV (VA, VB)
*+
* - - - - -
* D V D V
* - - - - -
*
* Scalar product of two 3-vectors (double precision)
*
* Given:
* VA dp(3) first vector
* VB dp(3) second vector
*
* The result is the scalar product VA.VB (double precision)
*
* P.T.Wallace Starlink November 1984
*
* Copyright (C) 1995 Rutherford Appleton Laboratory
*
* License:
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see SLA_CONDITIONS); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* Copyright (C) 1995 Association of Universities for Research in Astronomy Inc.
*-
IMPLICIT NONE
DOUBLE PRECISION VA(3),VB(3)
slDVDV=VA(1)*VB(1)+VA(2)*VB(2)+VA(3)*VB(3)
END
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