Calculator with square route

Hello. I’m trying to code a simple calculator in python, using inputs. I have added addition, subtraction, multiplication and division, and pi (Just because), but I would like to know what a fixed sum is for square route is. Eg. 64 = 8. Is there a fixed sum, or a part of code in the language that I don’t know of? Please help

we could use exponent:

64 ** 0.5

square root is the same as exponent 0.5

Thank you so much. That finalizes the calculator!