■ Overview
· This app can do two calculations at the same time.
- At the same time you can display two calculators.
· You can register the display and constant formula, they are useful calculator.

■ function
1. Two calculator
To perform multiple calculations simultaneously in that there are two calculator, it can be conveniently used in various situations.

2. formula display
You can batch calculation from entering the formula. It is easy to understand and difficult to mistake the formula display type computer. It corresponds to the expression using the brackets.

3. constant registration
Two constants registration is possible. You can easily calculate the tax amount at the time of shopping.