Algorithm
1. Start
2. Display a menu to the user with options:
a. Addition
b. Subtraction
c. Multiplication
d. Division
e. Exit
3. Accept the user's choice
4. If the choice is 'e', exit the program
5. If the choice is one of the operations (a, b, c, d), proceed to the next steps
6. Accept two numbers from the user (operands)
7. Perform the selected operation based on the user's choice:
a. If the choice is 'a', add the two numbers
b. If the choice is 'b', subtract the second number from the first
c. If the choice is 'c', multiply the two numbers
d. If the choice is 'd', divide the first number by the second (handle division by zero)
8. Display the result to the user
9. Repeat from step 2 (allowing the user to perform more calculations) or exit if the user chooses to
10. End
Code Examples
#1 Code Example- Adding Operators
Code -
Python Programming
number_1 = int(input('Enter your first number: '))
number_2 = int(input('Enter your second number: '))
print(number_1 + number_2)Output
Enter your second number: 3
11
#2 Code Example- Adding Operators
Code -
Python Programming
number_1 = int(input('Enter your first number: '))
number_2 = int(input('Enter your second number: '))
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)Output
Enter your second number: 717
90 + 717 =
807
#3 Code Example with Python Programming
Code -
Python Programming
number_1 = int(input('Enter your first number: '))
number_2 = int(input('Enter your second number: '))
# Addition
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)
# Subtraction
print('{} - {} = '.format(number_1, number_2))
print(number_1 - number_2)
# Multiplication
print('{} * {} = '.format(number_1, number_2))
print(number_1 * number_2)
# Division
print('{} / {} = '.format(number_1, number_2))
print(number_1 / number_2)#4 Code Example- Adding Conditional Statements
Code -
Python Programming
'''
Please type in the math operation you would like to complete:
+ for addition
- for subtraction
* for multiplication
/ for division
'''#5 Code Example- Adding Conditional Statements
Code -
Python Programming
operation = input('''
Please type in the math operation you would like to complete:
+ for addition
- for subtraction
* for multiplication
/ for division
''')
number_1 = int(input('Enter your first number: '))
number_2 = int(input('Enter your second number: '))
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)
print('{} - {} = '.format(number_1, number_2))
print(number_1 - number_2)
print('{} * {} = '.format(number_1, number_2))
print(number_1 * number_2)
print('{} / {} = '.format(number_1, number_2))
print(number_1 / number_2)#6 Code Example with Python Programming
Code -
Python Programming
operation = input('''
Please type in the math operation you would like to complete:
+ for addition
- for subtraction
* for multiplication
/ for division
''')
number_1 = int(input('Enter your first number: '))
number_2 = int(input('Enter your second number: '))
if operation == '+':
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)
elif operation == '-':
print('{} - {} = '.format(number_1, number_2))
print(number_1 - number_2)
elif operation == '*':
print('{} * {} = '.format(number_1, number_2))
print(number_1 * number_2)
elif operation == '/':
print('{} / {} = '.format(number_1, number_2))
print(number_1 / number_2)
else:
print('You have not typed a valid operator, please run the program again.')Output
+ for addition
- for subtraction
* for multiplication
/ for division
*
Please enter the first number: 58
Please enter the second number: 40
58 * 40 =
2320
#7 Code Example- Defining Functions
Code -
Python Programming
# Define our function
def calculate():
operation = input('''
Please type in the math operation you would like to complete:
+ for addition
- for subtraction
* for multiplication
/ for division
''')
number_1 = int(input('Please enter the first number: '))
number_2 = int(input('Please enter the second number: '))
if operation == '+':
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)
elif operation == '-':
print('{} - {} = '.format(number_1, number_2))
print(number_1 - number_2)
elif operation == '*':
print('{} * {} = '.format(number_1, number_2))
print(number_1 * number_2)
elif operation == '/':
print('{} / {} = '.format(number_1, number_2))
print(number_1 / number_2)
else:
print('You have not typed a valid operator, please run the program again.')
# Call calculate() outside of the function
calculate()#7 Code Example- Defining Functions
Code -
Python Programming
# Define our function
def calculate():
operation = input('''
Please type in the math operation you would like to complete:
+ for addition
- for subtraction
* for multiplication
/ for division
''')
number_1 = int(input('Please enter the first number: '))
number_2 = int(input('Please enter the second number: '))
if operation == '+':
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)
elif operation == '-':
print('{} - {} = '.format(number_1, number_2))
print(number_1 - number_2)
elif operation == '*':
print('{} * {} = '.format(number_1, number_2))
print(number_1 * number_2)
elif operation == '/':
print('{} / {} = '.format(number_1, number_2))
print(number_1 / number_2)
else:
print('You have not typed a valid operator, please run the program again.')
# Call calculate() outside of the function
calculate()#8 Code Example- Defining Functions
Code -
Python Programming
...
# Define again() function to ask user if they want to use the calculator again
def again():
# Take input from user
calc_again = input('''
Do you want to calculate again?
Please type Y for YES or N for NO.
''')
# If user types Y, run the calculate() function
if calc_again == 'Y':
calculate()
# If user types N, say good-bye to the user and end the program
elif calc_again == 'N':
print('See you later.')
# If user types another key, run the function again
else:
again()
# Call calculate() outside of the function
calculate()#8 Code Example- Defining Functions
Code -
Python Programming
...
# Define again() function to ask user if they want to use the calculator again
def again():
# Take input from user
calc_again = input('''
Do you want to calculate again?
Please type Y for YES or N for NO.
''')
# If user types Y, run the calculate() function
if calc_again == 'Y':
calculate()
# If user types N, say good-bye to the user and end the program
elif calc_again == 'N':
print('See you later.')
# If user types another key, run the function again
else:
again()
# Call calculate() outside of the function
calculate()#9 Code Example- Defining Functions
Code -
Python Programming
def calculate():
operation = input('''
Please type in the math operation you would like to complete:
+ for addition
- for subtraction
* for multiplication
/ for division
''')
number_1 = int(input('Please enter the first number: '))
number_2 = int(input('Please enter the second number: '))
if operation == '+':
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)
elif operation == '-':
print('{} - {} = '.format(number_1, number_2))
print(number_1 - number_2)
elif operation == '*':
print('{} * {} = '.format(number_1, number_2))
print(number_1 * number_2)
elif operation == '/':
print('{} / {} = '.format(number_1, number_2))
print(number_1 / number_2)
else:
print('You have not typed a valid operator, please run the program again.')
# Add again() function to calculate() function
again()
def again():
calc_again = input('''
Do you want to calculate again?
Please type Y for YES or N for NO.
''')
if calc_again.upper() == 'Y':
calculate()
elif calc_again.upper() == 'N':
print('See you later.')
else:
again()
calculate()Demonstration
Python Programing Example to Make a Simple Calculator-DevsEnv