As of about September 30, 2010, Wolfram|Alpha has added the ability to enter input in $\LaTeX$. Some of you have heard me discuss $\LaTeX$, which is the standard for typesetting mathematics. This wiki plays nice with $\LaTeX$ and now Wolfram|Alpha does, too. If you want to know more, you can read the blog post from Wolfram|Alpha located here. If you want to know more about $\LaTeX$, you can check out the quick LaTeX guide that I wrote for using $\LaTeX$ in this wiki or you can read the wikipedia article about $\LaTeX$ located here.

LaTeX and Wolfram|Alpha