We were interested in [Lee Teschler]’s review earlier this year of 30 free circuit simulators ... of the trial versions were very limited. For example, DCAClab only provides an NPN bipolar ...

But you can flip this idea in reverse and use electric circuits to model other complex phenomena instead. [Oxx], for example, is using circuit theory to model his home’s heating systems.

Circuit simulation software can test and refine designs before ... and what comes out (output), but not what happens inside. For example, with a kettle, the input is electricity and water, and ...