Is there any way to add mathmatical symbols to a course?

Hi everyone!

I’m trying to create a course to learn some of the formulas I’m learning in my physics class.
However, I couldn’t seem to be able to use mathematical symbol, such as a square root or superscript numbers or indexes. (E.g. a superscript 2 is automatically converted into a normal 2, the same thing goes for y as an index.)
Is there any way I can add these symbols?

I found this userscript in the memrise wikia and installed it, however, I don’t know how to use it…
Any help would be very much appreciated. :slight_smile: