precision on op:numeric-divide

"Damien Fisher" <[email protected]>
Newsgroups gmane.comp.web.query-languages
Message-ID <[email protected]> 
op:numeric-divide has a special case when the two inputs are of type
xs:integer, and in this case returns an xs:decimal.

 

What, then, is the answer to op:numeric-divide(1, 3)?  Is it 0.3?  0.33?
0.333?  In other words, to what precision should irrational answers be
returned?  And should rational answers always be returned exactly, even if
that requires an enormous amount of precision?
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