Math formulas
From SissaWiki
Once you have requested to enable this extension you can enter Latex math formatting enclosing it between two <math> and </math> tags. You obtain directly a latex equation environment that you should be familiar with.
For more info see the official mediawiki documentation
Keep in mind that this extension supports only a subset of latex commands. Most features are available, some advanced ones may not.
Below you can find some samples.
Failed to parse (PNG conversion failed; check for correct installation of latex and dvipng (or dvips + gs + convert)):