Enable MathJax

<script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>

Enable Equation Numbering

<script type="text/x-mathjax-config">MathJax.Hub.Config({TeX: { equationNumbers:{ autoNumber: "AMS" }}});</script>

# Enable the latexsym package
<script type="text/x-mathjax-config">MathJax.Hub.Config({TeX: { extensions: ["AMSsymbols.js"]}});</script>

Enable the single $ sign for LaTeX

<script type="text/x-mathjax-config">MathJax.Hub.Config({tex2jax: {inlineMath: [['$','$'], ['\\(','\\)']]}});</script>