This is why we don’t ask cats to do arithmetic! 

Bob S


> On Oct 27, 2014, at 13:15 , [email protected] wrote:
> 
> Hugh.
> 
> 
> But this will act the same if t1 contains "0" as well. You are testing the 
> two cats with arithmetic. When you do that, the result will be the same. 
> 
> 
> 
> -----Original Message-----
> From: FlexibleLearning.com <[email protected]>
> To: use-livecode <[email protected]>
> Sent: Mon, Oct 27, 2014 4:00 pm
> Subject: Re: Is zero the same as empty?
> 
> 
> As Jacque has pointed out, 'empty' and 'zero' depend on context. When doing
> math calculations, I always force a math evaluation...
> 
> If t1 + 0  = 0 then ...
> 
> If t1 is empty it will then always evaluate to zero.
> 
> Might help in your situation.
> 
> Best regards,
> 
> Hugh Senior
> FLCo
> 
> 
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