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Re: std.qbk

by John Maddock :: Rate this Message:

Paul A Bristow wrote:

>> Investigating
>>
>> http://www.w3.org/TR/2001/REC-MathML2-20010221/overview.html |
>>
>> and doing a bit of processing of
>>
>>> > http://www.w3.org/TR/2001/REC-MathML2-20010221/byalpha.html
>>
>> I have produced a file of templates for all the squiggles in the
>> above list.
>>
>> It turns out that there are over 2000 of them!
>>
>> It starts off
>>
>> [/ Collection of Math and Greek symbols used by MathML]
>>
>> [/http://www.w3.org/TR/2001/REC-MathML2-20010221/]
>> [/http://www.w3.org/TR/2001/REC-MathML2-20010221/chapter6.html#chars_intro]
>> [/@http://www.w3.org/TR/2001/REC-MathML2-20010221/byalpha.html]
>>
>> [template aacute '''á'''] [/ =small a,
>> acute accent, LATIN SMALL LETTER A WITH ACUTE] [template Aacute
>> '''Á'''] [/ =capital A, acute accent, LATIN CAPITAL LETTER A
>> WITH ACUTE] [template abreve '''ă'''] [/
>> =small a breve, LATIN SMALL LETTER A WITH BREVE]
>>
>> and goes on a long way ;-)
>>
>> In my file symbols.qbk, not attached but I can send to anyone who
>> wants it.
>>
>> I've tested all the symbols thus:
>>
>> [aacute]
>> [Aacute] ...
>>
>> and the attached list test.html. Viewing this shows that a good
>> proportion (though not all) are rendered as Unicode symbols by
>> Firefox 2.0. But a LOT less by IE6. (Can't try IE7 yet - still on
>> Windows 2000).

Does this not depend on the font used by the browser? You may also need to
install the extra MathML/Mathematica/TeX fonts from
http://web.mit.edu/is/topics/webpublishing/mathml/fonts-win.html to see
more.

>>> > I personally find the docBook name 'agr' less intuitive
>>> than MathML 'alpha'.
>>
>> So I am not sure what to do about this now.
>>
>> I don't fancy producing a subset that both IE6 and Firefox do.
>>
>> The number of chars seems a bit 'Over The Top'?
>> But it's about all the symbols a mathematician could ever want ;-)
>>
>> Might take longer to process?

It's impressive, but I don't actually see the symbols we need immediately in
the html you posted: the Greek alphabet! There are actually two ways to
approach this: the "standard" modern Greek letters, which I believe are
supported by just about every browser on every platform, and the
mathematically styled Greek letters
http://www.w3.org/TR/2001/REC-MathML2-20010221/1D7.html which I suspect will
be less well supported.

Don't forget also that whoever puts together a std.qbk has to be able to
document it so that folks can actually find the character that they want!

So how about we have:

* The regular modern Greek letters, named [alpha] etc for lower case and
[BETA] etc for upper case.
* The basic comparison operators (less than equal to etc), when I tested
these for the current Boost.Math documentation they seemed well supported on
current browsers.
* Any other special cases: floor/ceil operators etc.

All of these should be extractable from the Unicode data tables BTW.

How does this sound?

John.

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