Hi! 
I just finished my 5th project on freecodecamp. I have tried to build a calculator that includes all the main functionalities. The only thing that I would like is the (√, ^, log, ln, sin, cos, tan) to be calculated with bigger expressions. At the moment they just accept one argument, except the ^ that needs 2 numbers.
Any feedback is welcome!
P.S Don’t forget to turn on the calculator.
Cheers,
Simon