This plugin enables mathjax (http://www.mathjax.org) functionality for WordPress (http://www.wordpress.org).
Display mathematical equations within your posts and comments.
Easy WP LaTeX provides a very easy way to display math and equations in your…
Using Google chart API for LaTeX to add mathematical equations as images.
WP Calculator is a free simple calculator for your blog. Originaly developed from http://www.bmgadg.com/calculator.php script.