Examples on the use of MathText can be found at http://www.forkosh.com/mimetex.html#examples
Inserting math equation on a Moodle require certain filters to be enabled but before doing this, the related linux tools need to be installed. End users will need to ensure Java's JRE is installed and enabled in their web browser.
The required Linux (Referring to Centos Linux) tools to be installed include packages mimetex, texlive, texlive-dvips, texlive-latex, ImageMagick and their dependencies. The important tools that should be working and that is needed by Moodle later includes;
A good tip on enabling Java in web browsers can be found at the Java site. (https://www.java.com/en/download/help/java_blocked.xml)