# kramdown

## Math Engine Ritex

Ritex converts TeX math formulas into MathML and can be used together with the HTML converter.

To use Ritex, set the option ‘math_engine’ to ‘ritex’ and make sure that Ritex is available. The Ritex library can be installed, e.g., via Rubygems by running gem install ritex.

Note that Ritex is released under the GNU GPL version 2 which means that when you use it in conjunction with kramdown and your application, your application will automatically also fall under the GNU GPL!

If this is a problem for you, consider using the itex2MML engine instead!