Andrew Brampton created MATH-1083:
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             Summary: Fraction - Allow zero denominator if numerator is also 
zero
                 Key: MATH-1083
                 URL: https://issues.apache.org/jira/browse/MATH-1083
             Project: Commons Math
          Issue Type: Improvement
    Affects Versions: 3.1
            Reporter: Andrew Brampton
            Priority: Minor


The Fraction constructor rejects a denominator of zero. However, while trying 
to parse some Strings generated by another program, I encountered a fraction 
"0/0". I would say that's ambigous as to if that's valid, but some people would 
agree the answer is zero.

So, would it be possible to allow a zero denominator if the numerator is also 
zero. I'd be happy to provide a patch.



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