RCSim is a resistive circuit simulator that allows the circuit design directly on screen and has measuring instruments, showing the values of voltage and current while during simulation.
It designs on-screen resistive circuits in series, parallel or mixed of up to 300 meshes and allows to measure voltages and currents in each node of the RCSim system.
The RCSim calculations are made based on the Modified Nodal Analysis. Future versions will allow calculations with alternating current sources and elements such as capacitors, inductors and operational amplifiers. This RCSim software is freely distributed and can be used without restrictions.