2024-08-02: 6. Calculator

My simple calculator. # def calculator function def add(n1, n2): return n1 + n2 def subtract(n1, n2): return n1 - n2 def multiply(n1, n2): return n1 * n2 def divide(n1, n2): return n1 / n2 # create a dictionary contains =-*/ o...