Perhaps the most useful aspect of IEEE floating-point is how divide-by-zero is handled; for any positive real number a, what are the 2 rules involving division by 0?

Perhaps the most useful aspect of IEEE floating-point is how divide-by-zero is handled; for any positive real number a, what are the 2 rules involving division by 0?



1. +a / +0 = +∞

2. -a / +0 = -∞

a = f(x)
if(a > 0) {
do something
}
What does the if-statement evaluate to when:
a = +∞?
a = -∞?
a = NaN?
+∞ > 0 = true
-∞ > 0 = false
NaN > 0 = false

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