thanks for using amazing calculator, using the calculator isnt just like any calculator, it has special instructions

constants like ln2, pi or golrat you need to click the function and the constant appeares as a result.

in functions like ^2, sinrad and = you need to enter x ,then click the function and the answer will appear as a result

in functions like +, ^ and yroot you need to enter x and y ,then click the function and the answer will appear as a result