I just recently found this new script that allows people to use LaTex anywhere! For example: [; e^{\pi i} + 1 = 0 ;]. Use it in chat; use it in mafia games; use it in forums; use it in comments; use it in PMs... the possibilities are endless! You could even quantitatively describe an entire Electrodynamics course in just one page! Here are the links:

Chrome: http://bit.ly/dwdPPU

Firefox: http://thewe.net/tex/

All you have to do to use it is type

Have fun!!