I would like to enable the mathjax plugin. So I checked “enable mathjax plugin” on the settings page. Do I need to do anything else (like relaunching the app). And when it is enabled how can I begin to use it in the text editor?
If you see the setting, then you must have installed the plugin. You can see examples of how it works on this post.
I installed it a month or so ago and can confirm that it was working then. If you have other plugins that affect how text is displayed, they could interfere with each other.