MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
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.
EMSO simulator - EMSO simulator is an equation-oriented process simulator with a graphical interface for modeling...
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
StochSD - StochSD (Stochastic System Dynamics) is a Continuous System Simulation extension that is built with the capabilities to help you simulate continuous flows between compartments and, most importantly, also has the power to manage discrete transitions …
Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.