[GreenKeys] Polar relays anyone?

[Dave Horsfall]

On Fri, 15 May 2015, Jones, Douglas W wrote:

> In the 1's complement number system, adding positive zero to positive 
> zero produces positive zero, and adding negative zero to negative zero 
> produces negative zero.  Adding negative zero to positive zero (or visa 
> versa) produces negative zero.

It's been a while since I used a CDC mainframe, but I didn't know that
-0 + +0 == -0.

-- 
Dave Horsfall DTM (VK2KFU)   "Those who don't understand security will suffer."
http://www.horsfall.org/spam.html (and check the home page whilst you're there)