written by Wolfgang Christian

The Central Force JavaScript Model computes the trajectory of a particle acted on by a central force.  The model reads uses a JavaScript mathematical expression parser to read the force and a adaptive step Runge-Kutta  5(4) algorithm to compute the trajectory.  This model is designed to test the speed of the JS parser and the accuracy of the EJS JavaScript ODE solver.

The Central Force JS Model was developed using the Easy Java Simulations (EJS) version 5.  It is distributed as a ready-to-run html page and requires only a browser with JavaScript support.  This model runs on tablets.

• Download ejss_model_mech_CentralForce.zip - 240kb Compressed File

Published September 1, 2013
Last Modified September 30, 2014

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A single model ePub containing the Central Force JavaScript Model.

• Download CentralForce.epub - 195kb EPub Document

Last Modified July 28, 2018

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This source code zip archive contains an XML representation of the Central Force JS Model.   Unzip this archive in your Ejs workspace to compile and run this model using EJS 5.  Although EJS is a Java program, EJS 5 creates a stand alone JavaScript program from this source code.

• Download ejss_src_CentralForce.zip - 71kb Compressed File

Last Modified November 8, 2016

This file has previous versions.