Mathematical Formulas (LaTeX)

This application allows you to add a short formula to all your messages and wall posts. Your friends can see the formulas and write formulas on your wall even if they didn't add the application.
You can also put your favourite equation or proof on your profile page.

Examples of the syntax are provided on the help page. There are also very good LaTeX Books available. One of the best LaTeX books is probably Guide to LaTeX by Kopka and Daly.