DISPLACEMENT - Explanation
This program calculates the displacement of a ship from an initial position, given its course, velocity and time. It is assumed that the ship follows the rhumb-line (= Loxodrome) to its final position. - The model for the earth is a sphere with 21600 nautical miles perimeter.
Results were partly checked against the rhumb-solver in: https://geographiclib.sourceforge.io/cgi-bin/RhumbSolve
for distances up to 20.000 nautical miles.
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 3 of the license or 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 (www.gnu.org/licenses/) for more details.
If errors are encountered, kindly send a note to firstname.lastname@example.org. Author: Heiner Müller-Krumbhaar - Last update 4.may 2023.