2011 Game Hint #1

[Randy Picolet]

Originally Posted by Fletch1373

wouldn't it have to be 0 though? the commutative property of addition...

infinity - infinity = infinity...
-infinity + infinity = -infinity... right?

I think infinity minus infinity is undefined. You can add and multiply (the result is still inifinity) but not subtract or divide. So (somebody correct me if I'm wrong):

inf + inf = inf
(-inf) + (-inf) = -(inf + inf) = -inf
inf x inf = inf
(-inf) x (-inf) = (-1 x -1)(inf x inf) = inf

inf - inf => undefined
inf/inf => undefined

Weird, but infinity is not actually a number, but a concept of increase beyond bounds.