[altrego99]

Can I get mathematical equations support, say with MathJax?

[aminbandali]

It's not built-in out of the box, so you gotta ask the developer about it. But you should be able to easily use it by adding the js files to your header.

[brickcap]

Well I have never worked with MathJax but from the cursory glance it looks like all you need to do is add js files and you can do that in specter.