2 Way To Make Python Calculator [ Complete Guide ]

python calculator using python program

the calculator in python programming seems very difficult.

we'll show you the easiest methods of creating program in python 2, 3 or 3.7

To make a simple python calculator, you need a basic understanding of python programming knowledge.

before start the coding of a calculator you must know about python syntax, function, variable, and conditions. i show in this post both methods of making a python calculator.

1. with function

2. without function

if you don't know well knowledge about python programming, don't worry we will show the easiest way of making and understanding the calculator made by python.

python program to make calculator [ without using function ]

this is a program of the calculator in python without using the function. it is a simplest form of python calculator.

#print options on screen

print("1.addition")

print("2.subtraction")

print("3.multiplication")

print("4.division")

#take input from user

choiceofuser=input("enter your option 1 to 4")

num=int(input("enter a number"))

num2=int(input("enter another number"))

#main calculation

if choiceofuser == '1':

    print("addition is",num+num2)

elif choiceofuser == '2':

    print("subtraction is",num-num2)

elif choiceofuser == '3':

    print("multiplication is",num*num2)

elif choiceofuser == '4':

    print("division is",num/num2)

#code ended

copy the code or write it manually in python shell to use a calculator.

output:

in this picture, all operation is performed addition, subtraction, multiplication, and division.

python program to make calculator [ using function ]

#function for add two numbers

def add(x, y):

   return x + y

#function for subtract two numbers

def sub(x, y):

   return x - y

#function for multiply two numbers

def mul(x, y):

   return x * y

#function for divid two numbers

def div(x, y):

    return x / y

#print options on screen

print("choos any one operational options")

print("1.addition")

print("2.subtraction")

print("3.multiplication")

print("4.division")

#User input

choice = input("Enter number of option")

num1 = int(input("Enter first number: "))

num2 = int(input("Enter second number: "))

if choice == '1':

   print("addtion is:", add(num1,num2))

elif choice == '2':

   print("subtraction is:", sub(num1,num2))

elif choice == '3':

   print("multiplication is", mul(num1,num2))

elif choice == '4':

   print("division is:", div(num1,num2))

else:

    print("please enter any on 1 to 4")

#code ended

see the screenshot of the following code as working in python shell

output:

that's all. I showed the two simplest methods of python calculator. use the code in python shell for using and calculation numbers using python.