[OASIS Issue Tracker] Commented: (OFFICE-2284) Invalid constraints

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    [ http://tools.oasis-open.org/issues/browse/OFFICE-2284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17412#action_17412 ] 

Dennis Hamilton commented on OFFICE-2284:
-----------------------------------------

I think you are correct, as I said on the list.

These are not constraints in the same sense as on parameters (and interdependencies among parameters and also with global settings).

There might need to be a separate "limitations" topic, and it could also deal with ranges beyond the limitations of representation, tolerances around sharp discontinuities and range edges, etc.

> Invalid constraints
> -------------------
>
>                 Key: OFFICE-2284
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-2284
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>          Components: OpenFormula
>    Affects Versions: ODF 1.2
>            Reporter: Andreas Guelzow 
>             Fix For: ODF 1.2
>
>
> We have in 5.2:
>   Constraints: A description of constraints, in addition to the constraints imposed by the
>   parameter types. If there are no additional constraints beyond those imposed by the
>   parameter types, this is "None". If a constraint is not met, the function/operator should return
>   an Error unless otherwise noted.
> I always, perhaps incorrectly, read this as that the constraints limit the possible parameters (beyond what is implied by their type).
> In the function descriptions we have:
> ACOT     Constraints: The result must be between 0 and PI().
> ACOTH  Constraints: Real result
> ATAN      Constraints: The result must be between -PI()/2.0 and PI()/2.0.

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