Re: port x-symbol to GNU emacs 24.
Uwe wrote in response to Stephen:
Has it occurred to you to do a web search?
Yes.
In summary, if you want to do Unicode maths properly (or Unicode
anything else properly), you should really switch to Xe(La)TeX.
I am using Xelatex on a regular base, basically for hebrew. I presume
you mean by unicode math, the following package
\usepackage{fontspec,unicode-math}
That however requires special fonts, standard as it seems for TeXlive
2011, but not necessarily standard in older distributions. So if you
wish to send a file with utf8 math symbols to a colleague (as I do
frequently) you might run into a problem.
If you don't want to do that (and it's not entirely trivial),
you can
hack things with [uft8x]inputenc and mathletters.
The same comment applies to mathletters.
In short the advantage of x-symbol over utf8 math symbol is:
- it produces standard Latex which is compatible back even versions
prior to Latex2e.
- the x-symbols are much nicer than the utf-8 ones.
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