Dr. Circuit is a Macintosh program that is a design tool for circuit
designers. It can help reduce the amount of rewiring that happens in
the lab. The program analyses linear, analog circuits and can display
the waveform at any node, the frequency response or the phase
response. It can be used for amplifiers, filters, and any circuit
which uses resistors, capacitors, inductors, op amps and voltage or
current sources. The op amps provide quite a bit of flexibility
because they can be used for amplification, inversion,
differentiation, integration and much more.
To analyze a circuit you need to make a text file which describes it.
The program then builds the circuit model from the text description,
solves the math and displays the solution.