HOW TO MAKE A CALCULATOR IN PYTHON

In this article, we will learn how to create a simple calculator in Python.

In our calculator, basic operations like addition, subtraction, multiplication, and division. You need to have prior knowledge about functions to clearly understand this program. Once you get the idea, you can add many other features to the calculator.

#python program for simple calculator

#addition function
def add(n1, n2):
    return (n1 + n2)

#subtraction function
def sub(n1, n2):
    return (n1 - n2)

#multiplication function
def mul(n1, n2):
    return (n1 * n2)

#division function
def div(n1, n2):
    return (n1 / n2)

print("****SIMPLE CALCULATOR****")
print("1. Add\n2. Subtract\n3. Multiply\n4. Divide\n")

#take input from user
choice = int(input("Select operations form 1, 2, 3, 4 : "))

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))

if choice==1:
    print(add(num1, num2))
elif choice==2:
    print(sub(num1, num2))
elif choice==3:
    print(mul(num1, num2))
elif choice==4:
    print(div(num1, num2))
else:
    print("Invalid input")

****SIMPLE CALCULATOR****
1. Add
2. Subtract
3. Multiply
4. Divide

Select operations form 1, 2, 3, 4 : 3
Enter first number: 3
Enter second number: 7
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