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 in python
def mutiply (x):
return 5*x
o = mutiply(10)
print(o)
Example 5: how to create calculator in python
# Program make a simple calculator
# This function adds two numbers
def add(x, y):
return x + y
# This function subtracts two numbers
def subtract(x, y):
return x - y
# This function multiplies two numbers
def multiply(x, y):
return x * y
# This function divides two numbers
def divide(x, y):
return x / y
print("Select operation.")
print("1.Add")
print("2.Subtract")
print("3.Multiply")
print("4.Divide")
while True:
# Take input from the user
choice = input("Enter choice(1/2/3/4): ")
# Check if choice is one of the four options
if choice in ('1', '2', '3', '4'):
num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))
if choice == '1':
print(num1, "+", num2, "=", add(num1, num2))
elif choice == '2':
print(num1, "-", num2, "=", subtract(num1, num2))
elif choice == '3':
print(num1, "*", num2, "=", multiply(num1, num2))
elif choice == '4':
print(num1, "/", num2, "=", divide(num1, num2))
break
else:
print("Invalid Input")
Example 6: 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!")