I am an EET student. The professor I have is not very thorough in his examples and if you can't keep up with him or have x-ray vision to see through him to the board while he is working the problems then you just don't get the information needed. That said, I am currently trying to do a take home test that involves calculating values for transformers, with hardly any notes and trying to teach myself through the book...which by the way is as mixed up as the problems and notes that I do have. I was wondering if anybody knows where I can find formulas for doing just about any calculation on single and three-phase transformers. I'm not trying to cheat and don't want answers to my test, I am just trying to give myself a fighting chance at passing a class that I am currently failing miserably.