Simple calculator in Python with source code
Source Code :
# creating while loop
while True:
# printing the available options
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")
print("5. Exit")
# asking user to Enter his choice
choice = int(input("Enter your choice: "))
# checking the choice between 1 and 4
if (choice>=1 and choice<=4):
# asking to enter two options
print("Enter two numbers: ")
# accepting first number
num1 = int(input())
# accepting second number
num2 = int(input())
# checking if number is 1
if choice == 1:
# adding
res = num1 + num2
# printing Addition
print("Result = ", res)
# checking if number is 2
elif choice == 2:
# Subtracting
res = num1 - num2
# printing Subtraction
print("Result = ", res)
# checking if number is 3
elif choice == 3:
# Multiplication
res = num1 * num2
# printing Result
print("Result = ", res)
# after checking all 3 choice,
# only one operation left, i.e. for Division
else:
# Division
res = num1 / num2
# printing Result
print("Result = ", res)
# checking if the choice is 5
elif choice == 5:
# if choice is 5, we will exit the program
exit()
# everything, except the five choices is useless
# so, we will print Wrong input..!!
else:
print("Wrong input..!!")
Output :
1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Exit
Enter your choice: 1
Enter two numbers:
12
23
Result = 35
1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Exit
Enter your choice: 2
Enter two numbers:
23
12
Result = 11
1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Exit
Enter your choice: 3
Enter two numbers:
12
23
Result = 276
1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Exit
Enter your choice: 4
Enter two numbers:
24
12
Result = 2.0
1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Exit
Enter your choice: 5
