Sign toggle (±): To enter a negative number, use the dedicated sign toggle button. First, type a positive number, and then press the toggle to reverse the sign.

x! -> Calculates the factorial, which is the product of all integers from 1 up to the specified number x (e.g., 5! = 5 × 4 × 3 × 2 × 1). It only accepts natural numbers.

n√x -> Calculates the n-th root of x. The syntax is n√x. You don't need to write them in designated order, if you write √ first, cursor autmatically move before it. if you want to write second root you can leave the exponent(n) free.

x^n -> Calculates the n-th power of x. The exponent (n) must be a natural number. The syntax is: value^power.

log -> Calculates the logarithm with a given base and value. It only accepts natural numbers. Press the 'log' button first, and then type the base and value using your keyboard in the format: log(base,value).

ln -> Calculates the natural logarithm of a given value. The base is e (Euler's number) and it only accepts natural numbers. The syntax is: ln value.

= -> Can also be performed by pressing the Enter key.

C -> Clears the entire example window.

⌫ -> Deletes one character.

Errors: If an invalid operation occurs, an error message will appear in the example window. It can be cleared by pressing the C button.

