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https://issues.apache.org/jira/browse/MATH-181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12564536#action_12564536
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Niall Pemberton commented on MATH-181:
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I have no idea - it was in the original constructor and my math is rubbish
compare to you guys.
> Specify the maximum of digits when parsing a Fraction
> -----------------------------------------------------
>
> Key: MATH-181
> URL: https://issues.apache.org/jira/browse/MATH-181
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 1.1
> Reporter: Niall Pemberton
> Priority: Minor
> Attachments: MATH-181-FractionDigitsLimit-v2.patch,
> MATH-181-FractionDigitsLimit.patch, MATH-181-FractionMaxDenominator.patch
>
>
> Firstly, thanks for the Fraction code - I've adapated it for something I'm
> working on and I didn't have a clue how to convert a decimal to a fraction :)
> Excel spreadsheets have the facility to specify a fraction format where you
> specify the maximum number of denominator digits to display.
> So for example:
> format "?/?" displays decimal values formatted in the range 1/2 to n/9
> format "??/??" displays decimal values formatted in the range 1/2 to n/99
> format "???/???" displays decimal values formatted in the range 1/2 to
> n/999 etc
> In excel then the value 0.6152 displays as 3/5, 8/13 and 510/829 respectively
> for the above 3 formats.
> I'm attaching a patch for the Fraction class which adds a new constructor
> where the maximum number of digits can be specified, rather than the epsilon
> value.
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