LaTeX on Blogspot

Blogspot is pretty bad at displaying math; $\mathrm{\LaTeX}$ is pretty awesome at displaying math. So how do we get Blogspot and $\mathrm{\LaTeX}$ working with each other? Using MathJax!

All it takes is the addition of one line to the HTML code for each blog, and presto! we can include $\mathrm{\TeX}$and $\mathrm{\LaTeX}$ commands into our blog. And not only can we do inline math, like $\int_{0}^{2 \pi} \mathrm{d}x = 2 \pi$, but also display math, like:

$$\begin{eqnarray} (a + b)^2 & = & (a + b) \cdot (a + b) \\ & = & a^2 + ab + ba + b^2 \\ & = & a^2 + 2ab + b^2 \end{eqnarray}$$
Truly remarkable! Now all I need to do is update all my old math posts using MathJax and good ol’ $\mathrm{\LaTeX}$.