I'm a newbie to electronics. I just learned Ohm's law recently, and am having trouble with some of the equations. I don't have any trouble with E=IR, I=E/R, R=E/I, or the basic power equation P=EI. It's the other equations that involve square root, and "to the power of" numbers. If someone could direct me to a website to learn this, without having to learn all about algebra, it would be greatly appreciated. I just want to learn enough to use Ohm's law and all the equations. Thanks.