In Google Docs, you can insert an equation and edit it with the equation editor. You can add symbols like summations, integrals, and greek letters with the equation editor, but it is also possible to add them by typing "\sum" "\hat", "\alpha", etc into the equation.
Does Google provide a list of all of these keywords somewhere? It doesn't follow Latex, or the names of the symbols when you go to Insert>"Insert special characters". A lot of keywords that you would expect to work like "\integral" or "\capitaldelta" do not work.
It's a useful feature, but I can't find anything about it.