Unlock the full potential of your iPad calculator app with our beginner's guide on how to use math notes on iPad. See how it can automatically calculate math equations and show results as you write.

When is a pocket calculator more than just a calculator? [Andrew Menadue] has been pushing the limits of his 1970s Casio FX-502P by adding all sorts of modern functionality via the calculator’s ...

The watches' calculator function can add, subtract, multiply, and divide up to eight digits. As for watch functions, you get dual time, an alarm, stopwatch functionality, and ...