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Central Force JS Model
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.
1 source code document is available
Subjects Levels Resource Types
Classical Mechanics
- Gravity
= Orbits
- Motion in Two Dimensions
Mathematical Tools
- Differential Equations
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- Educators
- text/html
- application/zip
- application/javascript
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Access Rights:
Free access
This material is released under a Creative Commons Attribution-Noncommercial-No derivatives 3.0 license.
Rights Holder:
Wolfgang Christian
Record Cloner:
Metadata instance created September 1, 2013 by Wolfgang Christian
Record Updated:
July 28, 2018 by Wolfgang Christian
Last Update
when Cataloged:
September 1, 2013
Other Collections:

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Record Link
AIP Format
W. Christian, Computer Program CENTRAL FORCE JS MODEL, Version 1.0 (2013), WWW Document, (
W. Christian, Computer Program CENTRAL FORCE JS MODEL, Version 1.0 (2013), <>.
APA Format
Christian, W. (2013). Central Force JS Model (Version 1.0) [Computer software]. Retrieved January 23, 2021, from
Chicago Format
Christian, Wolfgang. "Central Force JS Model." Version 1.0. (accessed 23 January 2021).
MLA Format
Christian, Wolfgang. Central Force JS Model. Vers. 1.0. Computer software. 2013. 23 Jan. 2021 <>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian", Title = {Central Force JS Model}, Month = {September}, Year = {2013} }
Refer Export Format

%A Wolfgang Christian
%T Central Force JS Model
%D September 1, 2013
%O 1.0
%O text/html

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%D September 1, 2013
%T Central Force JS Model
%7 1.0
%8 September 1, 2013

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

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Central Force JS Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

Use the Easy Java Simulations Modeling and Authoring Tool to edit and to explore the source code for the Central Force JS Model.

relation by Lyle Barbato

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