From: Justin Collins <justincollins@...>
Date: 2010-01-23T11:32:30+09:00
Subject: Re: why is rails/ruby automatically rounding to whole numbers.

Morgan Morgan wrote:
>       @wtf= 751 / 750
>
>      returns 1 in the view
>
>       @wtf= 3 / 750
>
>      returns 0 in the view
>
>       @wtf= 749 / 750
>
>       returns 0 in the view.
>
>
> can somebody explain what's going on here.  i'm just trying to calculate
> percents.
>   

Ruby performs integer division when the numerator and the denominator 
are both integers. If either is a floating point number, it will perform 
floating point division. Therefore, simply call .to_f on either side of 
the division and you will get a floating point number.

-Justin