Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!sdcsvax!ucsdhub!hp-sdd!hplabs!hpda!hpsmtc1!hpisod2!decot
From: decot@hpisod2.HP.COM (Dave Decot)
Newsgroups: comp.lang.c
Subject: Re: Simple question about:  ~
Message-ID: <2550042@hpisod2.HP.COM>
Date: 29 Jan 88 02:24:48 GMT
References: <1620006@hpcilzb.HP.COM>
Organization: Hewlett Packard, Cupertino
Lines: 10

The most important advantage of two's complement (why do they call it
that?)  is that adding and subtracting integers is easier (you just add
normally), and this makes hardware to build:

   111010  (-6)
 + 001001  ( 9)
 --------------
   000011  ( 3)

Dave Decot
hpda!decot