```On 11/11/2009, at 12:37 PM, David Carlisle wrote:

>> Your unicode.xml file defines math alphabets with names \mathsfbfsl
>> and so on which is similar to what I have in unicode-math but not
>> identical. Do they come from anywhere or are they essentially
>> arbitrary?
>
>
> essentially arbitrary but they were used (in some cases including
> hacking metafont parameters to make font variants) to make the
> example png images for the 1Dxxx plane a alphanumeric blocks
> that were in the mathml2 spec and now the entities spec.
> But I'm not sure I even have those fonts any more, perhaps on an
> archive
> tape somewhere...

If you're not particularly attached to your names, then, I'll keep
with what I've got for now. At some later stage we (the general "we")
can discuss better ones, if necessary.

>> If you're happy to experiment, then my unicode-math package should