We have MathJax
Welcome to [cs.SE]! Note that you can use LaTeX here to typeset mathematics in a more readable way. See [here](http://meta.cs.stackexchange.com/questions/271/add-short-reference-for-latex-commands) for a short introduction.
Welcome to Computer Science! Note that you can use LaTeX here to typeset mathematics in a more readable way. See here for a short introduction.