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operator dictionary entries

From: Robert Miner <RobertM@dessci.com>
Date: Tue, 17 Jun 2003 15:35:58 -0500
Message-Id: <200306172035.h5HKZwD12839@wisdom.geomtech.com>
To: gjc@inescporto.pt
Cc: www-math@w3.org


Hi.

You wrote:

>  When describing the <mo> attributes, the MathML reference indicates
> this in a table:
>   symmetric true | false set by dictionary (true)
> 
> (this is in section 3.2.5 Operator, Fence, Separator or Accent (mo))
> 
>   However, the suggested operator dictionary, in "appendix F Operator
> Dictionary (Non-Normative)", does not include a symmetric attribute.

The listing in Appendix F does actually specify stretchy="true" for
the entries where it should be true.  However, to save space, the
table leaves out attributes that have the same value as the default
for operators not in the disctionary.  The text at the start of
Appendix F says:

> Any attribute not listed for some entry has its default value, which
> is given in parentheses in the table of attributes in Section 3.2.5
> Operator, Fence, Separator or Accent (mo). 

If you look in 3.2.5, you will see that the default value for
"stretchy" listed in parentheses is false.  Hence, the Operator
Dictionary in Appendix F only lists the cases where stretchy="true".

Hope this helps.

--Robert

------------------------------------------------------------------
Dr. Robert Miner                                RobertM@dessci.com
MathML 2.0 Specification Co-editor                    651-223-2883
Design Science, Inc.   "How Science Communicates"   www.dessci.com
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Received on Tuesday, 17 June 2003 16:36:33 GMT

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