A good calculator has become a staple for
almost every mobile device, and Windows Phone 8 is no exception. The
built-in calculator is useful for simple arithmetic or for scientific
calculations.
You can access the phone’s calculator by going to the App screen and tapping Calculator.
The Calculator app at first appears to be
very basic, but Windows Phone 8 does include a scientific calculator.
You can access the scientific calculator by opening the Calculator app
and then turning the phone sideways. When you do, the Calculator
displays in scientific mode.