Mathematical formulas
You can easily include mathematical formulas on your site with the math plugin:
or
The plugin uses Javascript from mathjax.org or images created by mathtex.org (or rather the cloud service http://www.forkosh.dreamhost.com/mathtex.cgi) and is thus dependent on these services being up and running.
Installation
Download the plugin from http://get-simple.info/extend/plugin/math/211/ and unzip it to the plugins directory of your GetSimple installation.
Make sure, jQuery is included in your template.
Alternatively you can set the variable $math_mode at the top of the plugin file to 1 (mathTeX, image) or 2 (MathJax, javascript).
Usage
Include your LaTeX formulas within $$ and $$, e.g. $$ a^2 + b^2 = c^2 $$.