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Information Foreword What is EJS? Demos/Examples Credits Links Webcasts Installation Download & Install EJS Workspaces Running EJS Conditions of Use Documentation EJS Console EJS Interface Description Panel Model Panel View Panel Deployment Elements Reference User Feedback English | Spanish | View Edit History Print PDF ## Demos/Examples Here are some demo programs created with EJS, just to give you a flavor of the type of simulations you can create with it. Physics Cart pulled by a string: A cart is tied to a weight that falls. Throwing a ball: Parabolic throw. Collisions in one dimension: A front collision between two planar disks. Multiple collisions: A simulation of 2D collisions among multiple planar disks. Planetary motion: A Sun and planet, two-body problem. Metallic conductor: How can a lot of loose electrons cause a metal to be a good conductor? Lorentz force: A simulation of the force exerted by a magnetic field on an electrical current trough a wire. Transmission line: A very sophisticated simulation of a transmission line. Chemistry Brusselator: A chemical reaction with oscillating dynamics. JAR. XML. Biology Lotka-Volterra: A predator-prey model. JAR. XML. Mathematics Arenstorf orbits: Arenstorf orbits are closed trajectories of the restricted three-body problem. JAR. XML. Lorenz attractor: The three-dimensional Lorenz attractor shows the sensibility of simple non-linear ordinary differential equations to initial conditions. JAR. XML. Planet choreographies: Curious planar trajectories of n-bodies under mutual gravitational attraction. JAR. XML. Vibrating string: We solve the one dimensional wave equation using an explicit difference method to display a vibrating string. JAR. XML. Poisson equation: We solve Poisson partial differential equation in the plane, using the relaxation method, to display an electrostatic field. JAR. XML. Heat equation: We solve the one dimensional Heat partial differential equation, using the method of lines, to display the flow of heat in a thing metal bar. JAR. XML. Examples with the new 3D visualization (To be released late 2009.) Earth and Moon in 3D: The moon revolving around the Earth. Furuta Pendulum in 3D?: A Furuta pendulum. More examples: Links to examples created by other people The EJS distribution includes a lot of additional examples. If an Internet connection is available, from the EJS’ interface you can connect to on-line digital libraries with dozens (if not hundreds) of examples.

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Page last modified on July 28, 2009, at 07:00 PM