Here, I have always wondered - if you go into an exam and the first thing you do is write down all the formula you know, is this counted as cheating. I do this all the time and I always think it must be wrong but it is a sure fire way to remember them. All you do is read the formula just before the exam and a minute later you can write them down. I don't see why everyone doesn't do this, it is how I passed my A Levels.