We set up the ability to add math symbols and formulas. We added some shortcuts for some very common symbols and notations:

However, that 'Enter formula' field is very flexible, as it uses LaTex, which allows you to express mathematical and scientific expressions:

https://www.overleaf.com/learn/latex/Mathematical_expressions

As an example, try typing in a^2 + b^2 = c^2 into the formula field.