Easy Calculator App

很容易计算与灵活的计算器所有的数值。

A calculator flexible is a machine which allows people to do math operations more easily. For example,

most calculators will add, subtract, multiply, and divide. Some also do square roots,

and more complex calculators can help with calculus and draw function graphs.

Calculators are found everywhere. A smartphone or other computer can also act as a calculator.