I just want to share that the version I currently used is very
friendly with Chinese text! I didn't do any special setting with
mathjax while it automatically handles Chinese well:
http://elinkage.net/cgi-bin/topic.cgi?forum=1&topic=151&start=0#bottom
=====code=====
正整数$\left\{\begin{array}{l}
大于\ 1\ 的奇数\ n=p_1^{k_1}\cdots p_m^{k_m}\\ 偶数 \left\{\begin{array}{l}
高阶偶数\ n=2^k m,\ (k>1,\ 2 \nmid m) \\
一阶偶数\left\{\begin{array}{l}
n = 2m,\ m = p^k T,\ 素数\ p > 3,\ 整数\ k,T\ge 1,\ 2\nmid T\\
\quad\quad 下面的\ m\ 不含大于3的素因子\\
\left\{\begin{array}{l}
n = 2m,\ m = 3^k,\ 整数\ k > 1\\
n = 2m = 6,\ 即\ m = 3^1 \\
n = 2m = 2,\ 即\ m = 3^0\end{array}\right.
\end{array}\right.
\end{array}\right.\\
n = 1
\end{array}
=====/code=====
\right.$
Davide