Factorial

Write a function called "fact" which takes a single integer argument (say "n") and returns the factorial of the number. For example fact(3) -> 6 2 assert fact(0) == 1 assert fact(5) == 120

Simple function

Create a simple function called "sqr" which takes a single argument and returns the square of the argument For example sqr(3) -> 9. 1 import math assert sqr(3) == 9 assert abs(sqr(math.sqrt(2)) - 2.0) < 1e-14