If you hadn't noticed already from the last post, I've been on kind of a math kick these days. I've been eager to share what I've learned, haven't had a way to share formulas other than images. That's ok, but it's not very flexible.
I tried setting things up manually, but didn't have a ton of luck. Fortunately, there's a module (MathJax: LaTeX for Drupal) that seems to work pretty well. Unfotunately, it's still in beta, so use it at your own risk.