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RomuxSim is a web-based Electronics circuit simulator, that can simulate circuits containing wires, resistors, diodes, transistors, voltage sources, etc., RomuxSim is implemented in client-side JavaScript and HTML canvas method.
This simulator is done in Javascript because it has to work in the browser. In simulation it parses the diagram and creates a system of equations describing the voltage and current at each point in the diagram. The voltage equations are basically "Ohm's Law" and the current equations are "Kirchoff's Law". Once we have the equations, We need to solve the equations to know the values. it is implemented by linear equation solver. Finally we have a unique values of each nodes and update these values to draw this circuit.
Nowadays, Students are learning much more electronics using circuit simulation software. Computer simulation of electronics has been available for years, and has proven to be accurate and effective.