Here is the link to the La Tex help forum
http://www.mathhelpforum.com/math-help/latex-help/
Here is a link to a few different sites with code
http://amath.colorado.edu/documentat...eX/Symbols.pdf
http://en.wikipedia.org/wiki/Help Formula
You can also look at other code by double clicking on it, or just hoover your mouse over the code.