MathEngine Inc.   Booth 321   Michelle Nelson 580 Howard Street, Suite 404 San Francisco, California 94105 USA +1.415.495.1738 michelle.nelson@mathengine.com www.mathengine.com   The MathEngine SDK, a toolkit for modeling physical systems for 3D environments, is demonstrated in an interactive simulation game with rich physics built using the MathEngine SDK and a general framework built in Java.