# Distance Dot Delight!

## Here's the famous distance formula for calculating the distance between 2 dots on a graph:

## d = √((x2 - x1)^{2} + (y2 - y1)^{2})

## If the 4 variables are consecutive integers, then the distance will ALWAYS be equal to *the square root of *8! (Or 2 *square roots of* 2!)

__Examples:__

## You can even include negative integers & the math trick will still work!

By the way, **zero(0)** is neither positive nor negative; it's neutral.

### Subtracting a negative number is the same as adding its *additive inverse*, so the *minuses* turn into *pluses* in this example.

The minuses at the left parentheses don't turn into pluses. Besides, even without a plus sign to the left of a numeral, the number is __positive (or netural if it's __**zero(0)**) by default.

## This math trick even works if the integers are in backwards order!

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© Derek Cumberbatch