Code: Select all
[tex]f(x)=\int_{-\infty}^xe^{-t^2}dt[/tex]
I good resource to learn how to do LaTeX is found here:
http://en.wikipedia.org/wiki/Help:Displaying_a_formula
Also, if you right click and look at the properties of a LaTeX image on physicsgre.com you can see the code used to generate the LaTeX image.