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Posted to issues@commons.apache.org by "Niall Pemberton (JIRA)" <ji...@apache.org> on 2008/01/23 02:54:34 UTC
[jira] Updated: (MATH-181) Specify the maximum of digits when
parsing a Fraction
[ https://issues.apache.org/jira/browse/MATH-181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Niall Pemberton updated MATH-181:
---------------------------------
Attachment: MATH-181-FractionDigitsLimit.patch
> 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.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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