You can check on this page the different options to render LaTeX formula on your Drupal website.
- Choice between loading the third party library code from MathJax servers (default), or from your website.
- Per path activation setting.
- Drush integration.
By default, the third party library code is downloaded from MathJax Content Delivery Network (CDN) through a secure connection in a transparent manner. This is a light-weighted, "out of the box" latex rendering solution, and you can still use custom configuration if you need.
Alternatively, you can host MathJax source (ca 150Mb) on your server (using the libraries module).
As stated by MathJax authors:
MathJax grew out of the popular jsMath project, an earlier Ajax-based math rendering system developed by Davide Cervone in 2004. In the intervening time, there have been many significant developments relevant for web publication of mathematics: consolidation of browser support for CSS 2.1, Web Font technology, adoption of math accessibility standards, and increasing usage of XML workflows for scientific publication. Consequently, Cervone and others are designing and developing MathJax from the ground up as a “next-generation” platform, while still benefitting from the extensive real-world experience gained from jsMath.