In mathematics, it is impossible to divide numbers by zero. Many an internet argument has raged over this, with well-meaning people maintaining that the answer to dividing by zero is infinity. It is not. The argument is that if you take 1/x and let x get closer and closer to zero, the value shoots off to be infinitely large. Which is half true. It only works if you come at it from the positive direction; if x starts negative and then approaches zero from below, the value of 1/x races toward negative infinity, completely the opposite direction of before. If the limiting value is different
...more
