Can someone explain to me how to evaluate the cost of a circuit? My teacher went over it briefly but I'm not quite sure.. Like what are the rules? Do you count inverters? I know that each gate is equal to 2 right? Each input is equivalent to 1? So, xyz would be 3 inputs so if i had 3 inputs and 2 and gates would that just be 3 + 4 = 7? Anyone have a link for a good example of how to do cost? Thanks in advance.