20-sim - 20-sim is commercial modeling and simulation program for multidomain dynamic systems, which is...
Calculation Laboratory - Calculation Laboratory is an online environment for numerical computations.
Xcos - Xcos is a graphical editor to design hybrid dynamical systems models.
MapleSim - MapleSim is an advanced system-level modeling tool that enables innovation and reduces development risk.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.