Contral force orbit

Central Force JS Model

The Central Force JavaScript Model computes the trajectory of a particle acted on by a central force.  The model reads the force F(r) using a JavaScript (JS) mathematical expression parser and uses a 5(4) adaptive step Runge-Kutta 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.

Credits:

The Central Force JavaScript Model was developed by Wolfgang Christian using version 5 of the Easy Java Simulations (EJS 5) modeling tool.  Although EJS is a Java program, EJS 5 creates stand alone JavaScript programs that run in almost any PC or tablet browser.  Information about EJS is available at: <http://www.um.es/fem/Ejs/> and in the OSP ComPADRE collection <http://www.compadre.org/OSP/>.