how to make a 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: basic calculator in python

#My Personal Python calculator
print("My Personal Python calculator")
#inputs
num1 = int(input('Enter the first number:  '))
num2 = int(input('Enter the second number:  '))
#opration req
opr = input('Enter the type of operation you want to perform between your chosen two numbers:  ')
#calculation
if opr=='+':
    ans = num1 + num2
    # displaying the answer
    print(f'Your final answer is {ans}')
elif opr == '- ':
    ans = num1 - num2
    # displaying the answer
    print(f'Your final answer is {ans}')
elif opr=='*':
    ans = num1 * num2;
    # displaying the answer
    print(f'Your final answer is {ans}')
elif opr=='/':
    ans = num1 / num2
    # displaying the answer
    print(f'Your final answer is {ans}')
else:
    print('Invalid Entry!!!')

Example 3: python calculator

print("Enter Your Choice 1(Add)/2(Sub)/3(Divide)/4(Multiply)")
num = int(input())
if num == 1:
    print("Enter Number 1 : ")
    add1  = int(input())
    print("Enter Number 2 : ")
    add2 = int(input())
    sum = add1 + add2
    print("The Sum Is ", sum)
elif num == 2:
    print("Enter Number 1 : ")
    sub1  = int(input())
    print("Enter Number 2 : ")
    sub2 = int(input())
    difference = sub1 - sub2
    print("The Difference Is ", difference)
elif num == 3:
    print("Enter Number 1 : ")
    div1  = float(input())
    print("Enter Number 2 : ")
    div2 = float(input())
    division = div1 / div2
    print("The Division Is ", division)
elif num == 4:
    print("Enter Number 1 : ")
    mul1 = int(input())
    print("Enter Number 2 : ")
    mul2 = int(input())
    multiply = mul1 * mul2
    print("The Difference Is ", multiply)
else:
    print("enter a valid Number")

Example 4: how to make a calculator in python

# This will be one of the most advanced results you will find.

# We will be using classes and simple operators like +,-,*,/

class Calculator:
  def addition(a,b):
    return a + b

  def subtraction(a,b):
    if a<b:
      return b - a
    else:
      return a - b

  def multiplication(a,b):
    return a * b

  def division(a,b):	
    if a<b:
      return b / a
    else:
      return a / b

# You can do this in terminal.
<C:/Users/username>python
>>> from main import Calculator
>>> result = Calculator.[addition|subtraction|multiplication|division](anyNumber, anyNumber)
>>> print(result)

Example 5: how to make a calculator in python

#You can change Text at Inputs

num1 = float(input("Enter Firt Number:"))
num2 = float(input("Enter Second Number"))

result= 0
op = str(input("Enter an op(operator)"))
#Gets Input Type--------
try:
  #U can make this in while loop ;-)
  if op=="+":
    result = num1 + num2
  else if op=="-":
    result = num1 - num2
  else if op=="*":
    result = num1 * num2
  else if op=="/":
    result = num1 / num2
  else:
      print("Invalid Input")
  print("The result is " + result)
except ZeroDivisionError:
  print("U cant do that")

Example 6: how to make a calculator in python

def add(num1, num2):
    return num1 + num2

def subtract(num1, num2):
    return num1 - num2

def multiply(num1, num2):
    return num1 * num2

def divide(num1, num2):
    return num1 / num2

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