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https://issues.apache.org/jira/browse/MATH-755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13217066#comment-13217066
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Sébastien Brisard commented on MATH-755:
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As of {{r1294043}}, {{BigReal.divide()}} throws {{MathArithmeticException}}.
> On the contract of FieldElement<T>.divide(T)
> --------------------------------------------
>
> Key: MATH-755
> URL: https://issues.apache.org/jira/browse/MATH-755
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.0, 3.1
> Reporter: Sébastien Brisard
> Assignee: Sébastien Brisard
> Priority: Minor
> Labels: exception, field
> Fix For: 3.1
>
>
> As discussed on the mailing list:
> {quote}
> The contract of {{FieldElement<T>.divide(T)}} states that an
> {{ArithmeticException}} should be thrown if the parameter is zero. However,
> for this boundary case
> * {{BigFraction}} throws {{ZeroException}}
> * {{BigReal}} throws {{ArithmeticException}}
> * {{Complex}} uses NaNs instead of exceptions
> * {{Dfp}}, {{DfpDec}} use flags instead of exceptions
> * {{Fraction}} throws {{MathArithmeticException}}.
> {quote}
> There is a need for some cleaning up, which will proceed in two steps
> # in version 3.0 of the {{FieldElement}} interface the statement that an
> exception must be thrown will be removed. The rationale for this is that
> sometimes, an exception is actually not wanted. For example, I'm using a
> wrapper around primitive {{double}}, and I want all boundary cases to be
> handled _exactly_ the same way as the primitive operation "/").
> # in version 3.1 of Commons Math, the _same_ exception (if any) will be
> thrown by all implementations. This will require to chose between
> {{ArithmeticException}}, {{MathArithmeticException}} and {{ZeroException}}.
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