I'm reading Gavin Wood's yellow paper. I anticipate asking some questions on the formulae.
Would it be worthwhile adding MathJax functionality to the Ethereum StackExchange site?
Or do you think I should post such questions to another community?
The devs are generally unwilling to add dependencies unless the community can demonstrate a need. Therefore, the general process for adding MathJax to a site is to find around a dozen or more posts which would benefit from its presence. It would be better if these were not all by the same person.
So start asking, and hope others do similarly. Once there are a few posts which are struggling to include mathematics, and which would clearly be improved by MathJax, ask again. Include a list of such posts in your question.
Play around here: http://www.codecogs.com/latex/eqneditor.php
We should reconsider this when there is a broader need. For now, it's pretty convinient to just use external tools. Also see this heavy debate on main meta: LaTeX on Stack Overflow?