Hai-Etlik made a great suggestion that we implement MathJax into the site for complicated mathematical notation to be presented with clarity. We've added this capability and it seems to work great. Here's an example of what this provides us with:

\[\sum^n_{k=1}k=\frac{n(n+1)}{2}\]

You can get more information at the MathJax website and see samples of LaTeX and MathML in action.