[Key features]
-four fundamental math operations (addition,subtraction,multiplication,division).
-extra math operations(exponential operation, modular operation, percent operation).
-mathematical constants - Pi, E
-engineering functions such as sin, cos, tan, log, ln, ...
-some traditional calculator buttons - M+, M-, MR, GT
-button "clone" to copy math expressions and reuse them.
-cursor control buttons to move cursor freely.
-"del" button, "AC" button to delete input.
-text size control buttons.
-vibration button

[Programming]
-Users can create their own mathematical functions very easily in the same way as mathematical formulas. (Example: def sumOfTwoNumber (number 1, number 2) = number 1 + number 2;)
-Mathematical functions can be programmed using Javascript-like coding syntax ("for", "while", "switch", "if", "var")
-You can create thousands of mathematical functions for various purposes such as unit converter, future value, interest rate, etc.
-When programming, you can use the code template provided by this app.
-Very easy and simple coding tutorial is provided.