[whatwg] Mathematics in HTML5
Alexey Feldgendler
alexey at feldgendler.ru
Fri Jun 2 06:54:38 PDT 2006
On Fri, 02 Jun 2006 20:21:50 +0700, James Graham <jg307 at cam.ac.uk> wrote:
>>> 2) Excellent typography.
>> Can you specify point 2?
> Not entirely because I am not sufficiently familiar with the details of
> rendering mathematics. I will try to learn something so I can contribute
> more.
Here is what I can add:
* perfectly kerned x/y style fractions (often poorly simulated in HTML as
<sup>x</sup>/<sub>y</sub>)
* correct continuation of long fractions on the next line
* stacking of multiple over/underscripts
* stacking of multiple signs like tildes, arrows etc above variables
* stretching of tildes etc over complex expressions
* stretching of brackets and integrals around complex expressions
* matrices with cells of uniform size (as to accomodate for the largest
expression found)
* nice embedding of inline formulae in paragraphs of text (without
unnecessarily increasing line spacing)
>> So far people mentioned radicals and glyph shaping/kerning.
> Another obvious issue is stretchy characters like integral signs and
> brackets. Is the CSS model poerful enough to allow for this? If not, the
> mosel needs to improve.
TeX doesn't scale glyphs. It selects glyphs of different sizes, and for
those that are larger than the larges glyphs available, it uses a pair of
glyphs for the ends and fills the space between them with the third glyph
(a line segment). But this approach is not possible in today's CSS, either.
--
Alexey Feldgendler <alexey at feldgendler.ru>
[ICQ: 115226275] http://feldgendler.livejournal.com
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