lasernigel

So did I, ohms for resistance, reverse it mhos for conductivity.

Reminds me of all those "forgotten" things we used to learn...Kirchoffs law, Flemings left and right hand laws, Faradays law and then Tesla who at first had my mind spinning. J notation (square root of -1), I was told not to try to understand it but just get on with it. I did but those who questioned it soon found that it became hard to do.

radeng

I never had trouble with j notation, but that's maybe because I still use it a lot. It wasn't until we got to e to the j theta that I started to understand cosh and shin. Laplace transforms I've used once since I learned some of it in 1969....and forgotten it!