PhotoMath does just that, utilizing your smartphone's camera to quickly solve math problems. PhotoMath only works with printed text, so unfortunately it won't be solving your scribbles anytime soon; you'll need a printed sheet of paper or a textbook. You then position the math problem you want solved within the red frame and PhotoMath does the rest, crunching the numbers and popping out an answer. photomath calculator photomath on computer photo math solver online