This is a calculator that can be placed freely the key.
You can also change the type, such as the number of keys, and display.

Customizing
• Free placement of key
• Changing the number of keys (4-5 horizontal, 4-7 vertical)
• Changing the display design
• Change the keypad design, color change
• Change the background color
• add and remove the calculator surface (surface up to eight, three or more surfaces will pay)

The other has the following characteristics.
• You can switch the calculator side swipe operation.
• by placing the shift key, you can switch the calculator in terms of one set of keys. (In-app purchases)
• You can use the key constants list, to display a list constant. Constant of more than 50 have been built in advance. It is also possible to add user-defined constant.
• You can use the display for programmers, Hex, Digit, Binary display is available at all times. (In-app purchases)

Functions, etc. that can be used
• In addition to the four arithmetic operations, you can do the following operations.
Trigonometric functions, hyperbolic functions, inverse, square root, cube root, square, three squares, factorial, power n, the exponential function (e, 10,2), a logarithmic function (e, 10,2)
Radix conversion, Bit operation, truncation, rounding.