tigerlihao

This plugin can let you add mathematical equations to your posts using latex. 
Google chart API is used in this plugin to turn the latex strings to equation images. 
The equation images will be stored on your site, so it will be efficient.
To add equations in your articles, just surround the latex script with <code>[eq]</code> and <code>[/eq]</code> tags. 
For example, add following codes <code>[eq]\alpha+\beta\geq\gamma[/eq]</code> in your posts.

Google Equation for WordPress

Using Google chart API for LaTeX to add mathematical equations as images.

levani01

WP Calculator is a free simple calculator for your blog. Originaly developed from http://www.bmgadg.com/calculator.php script.
Version Change log:
v0.1 
Initial release

WP Calculator

WP Calculator is a free simple calculator for your blog. Originaly developed from http://www.bmgadg.com/calculator.php script.

Google Equation for WordPress vs WP Calculator