how to make a calculator inpy code example

Example 1: simple python calculator

#Store number variables for the two numbers

num1 = input('Enter first number: ')
num2 = input('Enter second number: ')

#the sum of the two numbers variable
sum = float(num1) + float(num2)
sum2 = float(num1) - float(num2)
sum3 = float(num1) * float(num2)
sum4 = float(num1) / float(num2)

#what operator to use
choice = input('Enter an operator, + = addition, - = subtraction, * = multiplication and / = division: ')
#different sums based on the operators
if choice == '+':
  print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))

  if choice == '-':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum2))

if choice == '*':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum3))

if choice == '/':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum4))

Example 2: python calculator

num_one = int(input("Enter 1st number: "))

op = input("Enter operator: ")

num_two = int(input("Enter 2nd number: "))

if op == "+":
    print(num_one + num_two)
elif op == "-":
    print(num_one - num_two)
elif op == "*" or op == "x":
    print(num_one * num_two)
elif op == "/":
    print(num_one / num_two)

Example 3: how to build a better calculator in python

Copynum1 = int(input("num1: "))
op = input("Operator: ")
num1 = int(input("num1: "))

if op == "+":
     print(num1 + num2)
elif op == "-":
     print(num1 - num2)
elif op == "/":
     print(num1 / num2)
elif op == "*":
     print(num1 * num2)
else:
     print("Invalid Operator")

Example 4: python calculator

print("Choose operator (+,-,*,/):")
mode = input()
print("Choose first int:")
x = int(input())
print("Choose second int:")
y = int(input())

print("Your result:")
if mode == "+":
    print(x+y)
elif mode == "-":
    print(x-y)
elif mode == "*":
    print(x*y)
elif mode == "/":
    print(x/y)