# Creating Calculator Using Python Language Presentation.

# -*- coding: utf-8 -*- “””SimpleCalculator.ipynb  Automatically generated by Colaboratory.  Original file is located at     https://colab.research.google.com/drive/14EJkBaNAm… “””  # Python program for simple calculator  # Function to add two numbers def add(num1, num2):      return num1 + num2  # Function to subtract two numbers def subtract(num1, num2):      return num1 – num2  # Function to multiply two numbers def multiply(num1, num2):      return num1 * num2  # Function to divide two numbers def divide(num1, num2):      return num1 / num2  print(“Please select operation -\n” \            “1. Add\n” \            “2. Subtract\n” \            “3. Multiply\n” \            “4. Divide\n”)   # Take input from the user select = int(input(“Select operations form 1, 2, 3, 4 :”))  number_1 = int(input(“Enter first number: “)) number_2 = int(input(“Enter second number: “))  if select == 1:      print(number_1, “+”, number_2, “=”,                            add(number_1, number_2))  elif select == 2:      print(number_1, “-“, number_2, “=”,                            subtract(number_1, number_2))  elif select == 3:      print(number_1, “*”, number_2, “=”,                            multiply(number_1, number_2))  elif select == 4:      print(number_1, “/”, number_2, “=”,                            divide(number_1, number_2)) else:      print(“Invalid input”)