【實用教育app】Calculator|最夯免費app-綠色工廠好玩App

This is a simple fully functional calculator. It was designed for a Galaxy S4 but should work on any Android device. Works great but if you do something strange like hit a factorial of a decimal number(mind you that is against that law of mathematics) the app will need to be restarted but other than that it can handle anything you through at it.