@divinedolphin Hi there, you are really good at catching these typos! You're a big help. I'll fix this right now. Thank you so much.

By the way, you can type (1 + 2 + 2^3)... in math format, by typing this:

\\(1 + 2 + 2^3 \\)

which will give you

$$ 1 + 2 + 2^3 $$