When formatting sections, I see things like \renewcommand \thesection{\Roman{section}}.
I'm currently working on a set of Japanese History course notes, how would one go about defining a \Chinese command to use chinese/japanese numbering for my chapter headings?
Alternatively, if someone could point me to the place in the LaTeX codebase where I could find the particular definition that would work as well. I attempted to grep and find in my texlive installation but failed to find it.

\usepackage{xeCJK} \setCJKmainfont{DFKai-SB}. I hope this answers your question. – EricR Oct 06 '12 at 22:20zhnumber) was working with your setup. I've never used Chinese or Japanese character and I could not validate the results I got (correct numbers?). – Qrrbrbirlbel Oct 06 '12 at 22:45l3kernel l3packages. I'm going to update to texlive2012 soon and I'll update this accordingly. – EricR Oct 07 '12 at 00:04