Electrick is a lightweight app that makes electronic calculations easier and faster.
it's free and open source; under GPL License and active development.
writen by Mohammad Amin Sameti; a linux lover. i have a lot of works in to-do list;
like Ohm's law, 555 Calculator, etc.
your feedbacks always are useful. never think that they would be unread.
sorry for my bad english.
Good luck.