[OASIS Issue Tracker] Updated: (OFFICE-2209) When are exactnumerical results required?

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     [ http://tools.oasis-open.org/issues/browse/OFFICE-2209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eike Rathke updated OFFICE-2209:
--------------------------------

      Component/s:     (was: OpenFormula)
    Fix Version/s: Task
                       (was: ODF 1.2)

> When are exact numerical results required?
> ------------------------------------------
>
>                 Key: OFFICE-2209
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-2209
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>          Components: OpenFormula Test Cases
>    Affects Versions: ODF 1.2
>            Reporter: Robert Weir 
>             Fix For: Task
>
>
> Test case for TAN() currently is:
> =TAN(PI()/4.0)
> with an expected result of:
> 1±ε
> However a test case for LOG() is:
> =LOG(8*8*8; 8)
> with expected result of 3 (with no epsilon).
> Is this intentional?  I suspect that few implementations are going to be optimized to produce exact results here.
> Do we have a general rule here?  Shouldn't it be that any function that has a domain of real numbers should be allowed an epsilon on test results?  And only functions whose domain consists of the integers should be required to give exact results?

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