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Re: Question about relation displaystyle and display

From: Kobayashi <koba@antenna.co.jp>
Date: Wed, 03 Nov 2004 12:05:43 +0900
To: Robert Miner <RobertM@dessci.com>
Cc: www-math@w3.org
Message-Id: <20041103120543.8b7f8a%koba@antenna.co.jp>


Thank you for your explanation. It clears my uncertainty.

> Reply to the original mail from:
>  Robert Miner <RobertM@dessci.com>


I think your interpretation is correct.  In my view, these two
constructs should be considered to be equivalent as far as the
typesetting of the math is concerned.

1)  <math display="block">...</math>

2)  <math><mstyle displaystyle="true">...</mstyle></math>

Similarly, I think

3)  <span style="display:block"><math>...</math></span>

should be treated equivalently too.

There is some question as to whether all of these should embed the
math in the surrounding HTML the same way.  I think 1 and 3 should
definitely embed the equation as a separate, centered display, while 2
should probably just change the typesetting of the equation and not
affect how the equation is embedded.  However in all three cases,
scriptlevel should be initialized to '0', and displaystyle to 'true'.

I'm fairly sure this is what both MathPlayer and Mozilla do.


Dr. Robert Miner                                RobertM@dessci.com
W3C Math Interest Group Co-Chair                      651-223-2883
Design Science, Inc.   "How Science Communicates"   www.dessci.com

Tokushige Kobayashi
Antenna House, Inc.
E-mail koba@antenna.co.jp
WWW    http://www.antenna.co.jp/XML/ (Japanese)
WWW    http://www.antennahouse.com/ (English)
TEL    +81-3-3234-1361 (direct call)
FAX    +81-3-3221-9975

Let's migrate from a whiteboard to:
Received on Wednesday, 3 November 2004 03:25:13 UTC

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