It's okay fren. In undergrad I consistently wrote that the integral of 1/z was 1/z^2 or accidentally swapped x and y-axes in iterated integrals. I knew it was lnz, and I knew how to do iterated integrals, but my brain just auto piloted on the exams. I'd still get 95%, and the professors would think I was dyslexic. Which, fair, I probably am.
