Configuring and using the Tinymath Editor
From MoodleDocs
The Tinymath editor is an enhanced version of the TinyMCE editor used in Moodle 2. It is part of the Maths toolbox developed for Moodle by Mauno Korpelainien, SEE. While it is reasonably certain that this tool works as expected, the coding requires more extensive testing, i.e. field testing, to make sure that it does work properly.