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Re: When to stretch parentheses

From: Robert Miner <RobertM@dessci.com>
Date: Fri, 30 Jan 2004 11:55:21 -0600
Message-Id: <200401301755.i0UHtLm27525@wisdom.geomtech.com>
To: Vincent.Quint@inria.fr
Cc: www-math@w3.org, Vincent.Quint@inrialpes.fr


Hi Vincent.

> But, reading the spec further, section 7.1.2 "The Top-Level math Element",
> 3rd paragraph says:
> "The math element can contain an arbitrary number of children schemata.
> The children schemata render by default as if they were contained in an
> mrow element."
> (here, I suppose that "schemata" means "elements", and that "children"
> means the same as "direct sub-expression" in section 3.2.5.8.2).
> 
> This seems to be in favor of Amaya.
> 
> Is my reasoning right? Or should Amaya do the same as Mozilla?

Amaya is correct: the parentheses should stretch to cover the height
of the fraction.  As you deduced, this is because of the text you
cited. 

In general, most MathML elements that accept an arbitrary number of
children treat their children as if they were enclosed in a "inferred
mrow".  The <math> element is one case of this.

--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 Friday, 30 January 2004 12:48:12 GMT

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