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From "Travis Hanna (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-754) Additional Fraction Constructor
Date Wed, 29 Feb 2012 02:13:58 GMT

    [ https://issues.apache.org/jira/browse/MATH-754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13218836#comment-13218836
] 

Travis Hanna commented on MATH-754:
-----------------------------------

I see why I thought the Fraction class was final.  I was accidentally pulling in the fraction
class from commons-lang (org.apache.commons.lang.math.Fraction).
                
> Additional Fraction Constructor
> -------------------------------
>
>                 Key: MATH-754
>                 URL: https://issues.apache.org/jira/browse/MATH-754
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 3.0
>         Environment: All
>            Reporter: Travis Hanna
>            Priority: Minor
>              Labels: features, newbie, patch
>             Fix For: 3.0
>
>         Attachments: math.patch
>
>
> I'm writing some code which outputs fractional measurements meant for human consumption.
I need a constructor for Fraction which allows you to restrict the denominators to a finite
set. This is necessary due to the fact that real-world tools are only available with certain
fractions. For example, it's next to impossible to find a ruler with 1/7 inch marked :). 
> I'm attaching a patch which implements the functionality. I've attempted to mimic the
style of the existing code as much as possible. One caveat: I don't speak French so the french
error message is a computer-generated translation and probably very poor.

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