====== Zero ======

The number zero is neither negative not positive.

It's nonnegative as are all positive integers, and it's also nonpositive as are all the negative integers.

Zero times any number is zero.

$$ 0 \times 2 = 0 $$

Likewise, zero divided by any nonzero number is zero.

$$ \frac{0}{2} = 0 $$

<WRAP important round>
Dividing by zero is **undefined** and is not permitted.
</WRAP>