It is a calculator application that can be used with simple operation.The button is big and easy to press!The letters are big and easy to read!【Function】·Basic calculation functions for addition, subtraction, multiplication, and division.·Calculation results remain in history·You can copy the calculation results and formulas.As a result of the calculation, the expression can be easily copied and shared.·Calculate up to 15 digitsIt is easy to calculate even if there are many digits.·The button size is large and easy to pressThe size of the button is large, and there are few mistakes in pressing.·Character size is large and easy to seeBecause the character size is large and easy to read, there are few mistakes in reading the numbers.【Recommended for people like this】·Those who want to use a calculator with a large button·Those who want to use an easy-to-read capitalization calculator·People who often use calculators for study or work