I am writing a lab report as part of my degree and, of course, it must be in the standard scientific paper format. I have come up against something that isn't particularly difficult but something that you must get correct for papers. I am defining quantities and their units, however I am not sure how to define the quantity when it is not in its usual form. The situation is that normally you would say: t = time (s). So how do you say t2? Would it be: t2 = time (s2) OR t2 = time2 (s2)? Many thanks!