Mathjax

Here is a new cool thing: MathJax

\[x=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \M{A} \MM{P}{^-_i}\]

Mathjax is apparently a TeX implementation written entirely in Javascript. It looks like it scans the source code of your page, looks for delimited equations, then interprets the TeX within and renders it using math fonts.

Instructions for how to get it to work for Blogspot are here.

Now I get to go through all of my Kalman filter stuff and fix the math there into something actually readable.