code for calculator in python 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 make a calculator using idle

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()

Example 4: calculator code

x = input("first number")
y = input("second number")
z = input("do you want to multiply, minus, divide or add? (x,-,/,+)")

y = int(y)
x = int(x)

if z == "+":
    print (x + y)

if z == "/":
    print (x / y)

if z == "x":
    print (x * y)

if z == "-":
    print (x - y)

else:
    print("use x,-,/ or + next time!")

Example 5: calculator python

#this is a fraction calculator
def fractions_regular(fractions):
    f1 = input(13,25)
    f1 = fractions.Fraction(f1)
    f2 = input(6,25)
    f2 = fractions.Fraction(f2)
    operation = input('what is your iperation?')
    if operation == '+':
        print('{} + {} = {}'.format(f1, f2, f1 + f2))
    if operation == "-":
        print('{} - {} = {}'.format(f1, f2, f1 - f2))
    if operation == "*":
        print('{} * {} = {}'.format(f1, f2, f1 * f2))
    if operation == "/":
        print('{} / {} = {}'.format(f1, f2, f1 / f2))