[whatwg] Mathematics in HTML5
White Lynx
whitelynx at operamail.com
Thu Jun 22 04:48:55 PDT 2006
James Graham wrote:
> Also, as far as I know (and maybe I am just ignorant), there is no way to deal
> with wrapping of mathematics e.g.
>
> f(x) = ax^4 + bx^3 + cx^2 + dx + e
>
> should wrap to the right of the equals sign as far as possible (i.e. up until
> the point the screen is too narrow) like:
>
> f(x) = ax^4 + bx^3
> + cx^2 + dx
> + e
This reminds me hyphenation issues in text (especially in German and Scandinavian
languages where words are sometimes as long as math formulae)
formula {white-space:nowrap;}
<formula>f(x) = ax^4 + bx^3 + cx^2 + dx + e</formula>
works fine on screen. On handheld devices this could be a problem
however. It is hard to imagine person reading math article on mobile,
but in any case there is possibility to reintroduce wbr element:
f(x) = ax^4 + bx^3 <wbr/>+ cx^2 + dx + e
f(x) <wbr/>= ax^4 <wbr/>+ bx^3 <wbr/>+ cx^2 <wbr/>+ dx <wbr/>+ e
Automated line breaking would be nice, but even in LaTeX community
such a things are mostly done manually.
> I'm also not sure there exists a simple mechanism to get multiple lines of
> mathematics to line up on a specified point like:
> He + He <-> Be + gamma
> Be + He <-> C*
> C* -> C + gamma
> - clearly one could hand tweak this on a case by case basis but it's not ideal
At the moment secondary alignment mechanism does not exist (apart of tabular layouts of course).
> In addition to those, I'm pretty sure there are also significant character
> spacing issues if you're looking for TeX-quality rendering.
At the moment issue is left up to authors.
They can write 2 + 2, 2+2 or insert disirable width space (many are available in Unicode).
Even in LaTeX fine tuning is often done by authors using spaces like \; \! \,
Those who care much about spacing issues can fine tune spacing during authoring
process (either manually or by using XSLT or scripting).
--
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