A mathematical formula, with the letters in blue and all other symbols in red.  Integral from b to a of f'(x) = f(a) + f(b)

Fundamental Theowem of Calcuwus, Pawt 2! (Shouldn't that be a minus sign instead of a plus sign? Good thing this wasn't grad—uh, I mean, clearly that's intentional and the solution is f(a) = -f(a).)