Date: Jan 21, 2009 9:03 PM
Author: mensanator
Subject: Re: -1 x -1 ?

On Jan 21, 7:51 pm, Tay <wintct...@gmail.com> wrote:
> -1 *-1 = 1 huh?
>
> Well, think of it like this:
>
> The minus (negative) signs cancel eachother out:
>
> (-1)(-1)=
>
> [(-)(-)](1x1)=
>
> So then, multiply the + and numbers:
>
> (+)(1x1)=
>
> You've got positive 1:
>
> +1
>
> It's so simple.


If North is positive and you're facing South,
what's your displacement if you take a step backwards?