From: Marnen Laibow-Koser <marnen@...>
Date: 2009-11-01T03:59:55+09:00
Subject: Re: Really small numbers in ruby coming as zero!?

Alex Young wrote:
> Mahadev Ittina wrote:
>> # This is where I am having my problem
>>     K = ((M) / (b*(d**2)*fck)).to_f
> 
> K = M.to_f / (b*(d**2)*fck)
> 
> In your code, you're dividing an integer by an integer, so Ruby makes it 
> an integer division. If you make either the numerator or denominator a 
> float, you'll get a float result.

But don't use floats for math, because of the imprecision inherent in 
the format.  For math, stick to integers or BigDecimal.

> 
> --
> Alex

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen@marnen.org
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