From: Robert Miner <RobertM@dessci.com>

Date: Wed, 27 Oct 2004 16:46:37 -0500

Message-Id: <200410272146.i9RLkb818569@wisdom.geomtech.com>

To: www-math@w3.org

Date: Wed, 27 Oct 2004 16:46:37 -0500

Message-Id: <200410272146.i9RLkb818569@wisdom.geomtech.com>

To: www-math@w3.org

Hello All. One area where MathML is lacking is a specification of how it should be used in right-to-left languages, particularly Arabic. This issue came up during the work on MathML 2.0, and resulted in the addition of section 3.1.5. This section says that the Unicode bidirectional algorithm should be followed for the text within token elements, but that MathML 2.0 doesn't address the general question of right-to-left layout. The reason for that was simply that, the Math Working Group was unable to find enough examples and/or experts in the time available to be confident an attempt to describe how MathML should work in right-to-left text would get it right. Since then, however, a several groups have looked at using MathML in Arabic, and a number more have expressed interest in being able to do so. Consequently, the current Math Interest Group believes the time is ripe to start a public discussion of the issue, with the goals of: 1) Involving enough people from right-to-left language communities, particularly Arabic-speaking, to be able to make an authoritative statement about how math should be handled. 2) Assuming 1 can be done, compiling an authoritative statement of the rules of right-to-left math typesetting, and specifically how MathML should be used for right-to-left mathematics. 3) Assuming 1 and 2 can be accomplished, preparing a document with official status to disseminate the result of 1 and 2 such as a W3C Note, or perhaps a new version of MathML at some point. To get things started, I invite anyone with expert knowledge of math in Arabic or other right-to-left languages to post a brief introductory message. Pointers to examples, articles, projects or other useful background information would be especially welcome. If you aren't yourself an expert, but know someone who is, please draw their attention to this discussion. Thanks, --Robert ------------------------------------------------------------------ Dr. Robert Miner RobertM@dessci.com W3C Math Interest Group Co-Chair 651-223-2883 Design Science, Inc. "How Science Communicates" www.dessci.com ------------------------------------------------------------------Received on Wednesday, 27 October 2004 21:47:11 UTC

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