Component, CA, and CCA models; superdense time, DB repo, testing, etc.
Allows you to build your own circuits and test them
Visual & persistent families of models for CA, DEVS, and Statecharts
TraceMetrics is a trace file analyzer for Network Simulator 3 (ns-3).
Simple physics simulation of Curvilinear and Rectilinear Motions
ActiveFolder can be integrated with existed scientific computation.