RE: Formula Question

0 / 0 = Undefined?
I know X / 0 = undefined. When X > 0.
But I thought 0 / 0 = Indeterminate


-Bob Cozzi
www.RPGxTools.com
RPG xTools - Enjoy programming again.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Simon Coulter
Sent: Wednesday, January 04, 2006 9:33 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: Formula Question


On 05/01/2006, at 1:46 PM, Bob Cozzi wrote:

> Aside from it always equaling 1, how do you get a divide by zero error?
> Mathematically: 0 / 0 = 1

Perhaps it does in your universe but not in this one.

zero divided by any number is zero.
Any number divided by zero is undefined.
The dividend can be 0 but the divisor must be > 0

> Perhaps RPG blows up on this, I've never tried it.

All languages I've used generate an error (or at least an undefined 
result) on division by zero. Code must either catch the exception or 
check for the possibility before doing the division. Try dividing by 
zero on your calculator and see what happens.

Regards,
Simon Coulter.
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