So I have a question.<p>For those that arrive at the right answer, is it by mathematical correctness in the implementation or by rounding down?<p>i.e. Which are right and which are flukey in their wrongness?<p>Under any other circumstance I wouldn&#x27;t care about this pointless detail, but seeing as how this is the top post on the front page, I&#x27;d like an excruciatingly detailed investigation please.<p>Don&#x27;t make me not get round to doing it myself, sir.