From: Matthew Smith <matt@kbc.net.au>

Date: Thu, 27 Jan 2005 19:24:54 +1030

Message-ID: <41F8AC5E.8080406@kbc.net.au>

To: Budy Harnata <budy.harnata@u21global.com>

CC: w3c-wai-ig@w3.org

Date: Thu, 27 Jan 2005 19:24:54 +1030

Message-ID: <41F8AC5E.8080406@kbc.net.au>

To: Budy Harnata <budy.harnata@u21global.com>

CC: w3c-wai-ig@w3.org

Budy Harnata wrote: <blockquote> > How do I implement accessibility for mathematical formula without > MathML? Do I need to spell out the formula in the alternate text? What > is the correct way to create an alternate text of a complex formula, > like the following: </blockquote> You certainly need to provide an alternative to using an image; I even had to fiddle with your e-mail to view it as I don't use HTML mail. Presenting the formula in MathML is good, but I don't think that every user agent (browser) will be able to render it. There is also the accessibility issue of presenting maths to non-mathematicians! I'm no expert in this field, but will present my thoughts on the matter: You could consider writing it as you might when programming, for instance, the square root of 2 could be represented SQRT(2). You could then improve on this by defining what we mean by SQRT thus: <abbr title="square root">SQRT</abbr>(2) A square can be represented as x^2. We could use our abbr again as: x<abbr title="to the power of">^</abbr>2. Greek letters could be given their names (alpha, beta, gamma, delta, ....) At the end of the day, any formula is just a short-form notation which we should be able to express - albeit in a more long-winded manner - in English (or the language of our choice). Cheers M -- Matthew Smith Kadina Business Consultancy South Australia http://www.kbc.net.auReceived on Thursday, 27 January 2005 08:55:20 GMT

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