As remarked by Sadly-not as a comment on this question. It seems that math.stackexchange has a lot of nice ways to express mathematical formulas. Perhaps it would be a nice feature for arqade to also have.
Inclusion of this feature would make it a lot easier to elegantly explain more complex internal formulas used by games.
One minor issue with it, advanced users that use browser tools that block external sites will have problems with this feature. (noscript on firefox for example).
I know very little about the solution used by math.se. So MathJax might not be a good fix.