Go to this section of the forums. You will find tutorials on how to use LaTeX.

For example, if you type [tex]\sum_{k=1}^{\infty}\frac{1}{k^2}=\frac{\pi}{6}[/tex], you will generate the following image:

If you'd like to see how someone coded the image, just put you cursor over the image and click on it. Then a pop up box will appear with the LaTeX code used to generate the image. You can try this out by clicking on my generated image.

--Chris