From: cix <mcix@...>
Date: 2002-02-05T08:45:42+09:00
Subject: Re: Division Modulo Problem

Integers are very confusing, aren't them? ;-) 

> 9 / 2 = 4 that is easy

A 9/2 = 4.5  => 4 (lower end) as integer
B > -9 / 2 = -5 ??? => -5 (lower end) like A infact
     -9 / 2 = -4.5 => -5 (lower end) like A
C > 9 / -2 = -5 ??? that is because -9/2 = 9/-2

D > 9 % 2 = 1    OK  1 = 9 - 2* 4   
E > -9 % 2 = 1 ???    if -9 / 2 = -5  then   1 =  -9 - 2*(-5) like D 
F > 9 % -2 = -1 ???                              -1 = 9 - (-2) *(-5)  like D