Add math to your comments

You can now use a graphical math editor to insert mathematical expressions into your comments -- no special knowledge required! When you click the toolbar button to insert math, use the graphical editor to type in a math expression (for example, press to go to an exponent, or to start a fraction), or use the virtual keyboard at the bottom of the screen.

If you prefer to enter math directly using LaTeX code, you can still do that too! The math editor will stay in sync with any LaTeX you enter so you can see a live preview of the code you type in.