[Jprogramming] Getting the decimal values

[Alex Rufon]

Unfortunately, the client wants it in the original value (0.1) and not the expanded value (0.0999999999999996). :(

-----Original Message-----
From: programming-bounces at jsoftware.com [mailto:programming-bounces at jsoftware.com] On Behalf Of Bo Jacoby
Sent: Wednesday, April 29, 2009 7:17 PM
To: Programming forum
Subject: Re: [Jprogramming] Getting the decimal values


0.0999999999999996 is probably a correct floating point representation of 0..1.

Coding a hook is shorter, however:

   decimal =: -<.


--- Den ons 29/4/09 skrev Alex Rufon <alex_rufon at ist-systems.com>:

> Fra: Alex Rufon <alex_rufon at ist-systems.com>
> Emne: [Jprogramming] Getting the decimal values
> Til: "Programming forum" <programming at jsoftware..com>
> Dato: onsdag 29. april 2009 13.28
> Hello.
> 
> I made the following verb to get the decimal value of a
> floating point number:
> 
> decimal=: 3 : 0
> y - <. y
> )
> 
> The problem is this:
>       decimal 5.1
> 0.0999999999999996
> 
> But using a decimal value greater than 1 would return the
> correct result:
>       decimal 5.2
> 0.2
>       decimal 5.11
> 0.11
> 
> Any idea what I should do next?
> 
> Thanks.
> 
> r/Alex
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> 


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