Add support for Cyrillic maths about unicode-math HOT 11 CLOSED

From what I’ve heard, Cyrillic is only used in text contexts, e.g., \sin or explanatory subscripts. Except for U+0428 Sha (Ш), which is sometimes used as a special symbol, i.e., non-italic.

Does Cambria Math have any special entries for Cyrillic at all in the MATH table?

from unicode-math.

Nope, Cyrillic maths isn't recognised by unicode. However, I've been led to believe that Cyrillic is occasionally (or has in the past) been used directly to represent objects in mathematics; from cyrguide.pdf:

When typesetting Cyrillic texts, there is a tradition of using Cyrillic letters
(in some situations) within math formulæ, in exactly the same way as most of
the world uses Latin letters.

from unicode-math.

I’d wait until some user had an actual need for Cyrillic, then. No need to implement it if there’s no demand, and only someone who actually needs it can tell you what the conventions are.

from unicode-math.

Yep, it's definitely not high up on my list :)

from unicode-math.

E.g., http://tug.org/pipermail/xetex/2009-September/014294.html

from unicode-math.

The letter Ш is also used in Western mathematics, e.g. for denoting a Dirac comb. See http://en.wikipedia.org/wiki/Sha

from unicode-math.

In such cases is it usually typeset upright or italic?

from unicode-math.

The only source I've found right now (Wolfram MathWorld) typesets it upright: http://mathworld.wolfram.com/ShahFunction.html

from unicode-math.

This can now be achieved with \newmathfontface and using plain old letters. If need arises in the future we can add \mathcode switching, but I doubt it's necessary for the time being.

from unicode-math.

Cyrillic letters are not used in pure mathematics, but in the economic calculations, they are quite common.
http://profmeter.com.ua/communication/learning/course/course8/lesson827/

from unicode-math.

Thanks much for the link — I think that’s enough to convince me :)

from unicode-math.