Python make simple Calculator

by Online Tutorials Library July 22, 2022

Python Program to Make a Simple Calculator

In Python, we can create a simple calculator for performing the different arithmetical operations, such as addition, subtraction, multiplication, and division.

Approach:

We can choose the desired operation from the option of a, b, c, and d.
We can take two numbers, and if… elif… else, branching is used for executing the particular operation.
We will use add(), subtract(), multiply() and divide() function for evaluation the respective operation in the calculator.

Example:

  Please select operation –  a. Add  b. Subtract  c. Multiply  d. Divide  Select operations form a, b, c, d: “c”    Please enter first number: 11  Please enter second number: 4  11 * 4 = 44  

Code: for Simple Calculator

  def add(P, Q):       # This function is used for adding two numbers      return P + Q   def subtract(P, Q):      # This function is used for subtracting two numbers      return P – Q   def multiply(P, Q):      # This function is used for multiplying two numbers      return P * Q   def divide(P, Q):      # This function is used for dividing two numbers       return P / Q    # Now we will take inputs from the user    print (“Please select the operation.”)    print (“a. Add”)    print (“b. Subtract”)    print (“c. Multiply”)    print (“d. Divide”)        choice = input(“Please enter choice (a/ b/ c/ d): “)        num_1 = int (input (“Please enter the first number: “))    num_2 = int (input (“Please enter the second number: “))        if choice == ‘a’:       print (num_1, ” + “, num_2, ” = “, add(num_1, num_2))        elif choice == ‘b’:       print (num_1, ” – “, num_2, ” = “, subtract(num_1, num_2))        elif choice == ‘c’:       print (num1, ” * “, num2, ” = “, multiply(num1, num2))    elif choice == ‘d’:       print (num_1, ” / “, num_2, ” = “, divide(num_1, num_2))    else:       print (“This is an invalid input”)    

Output:

Case – (1):

Please select the operation.  a. Add  b. Subtract  c. Multiply  d. Divide  Please enter choice (a/ b/ c/ d):  d  Please enter the first number:  1  Please enter the second number:  2  1 / 2 = 0.5

Case – (2):

Please select the operation.  a. Add  b. Subtract  c. Multiply  d. Divide  Please enter choice (a/ b/ c/ d): b  Please enter the first number:  12  Please enter the second number:  11  12 - 11 = 1

Next TopicPython Display Calendar

Python make simple Calculator

Python Program to Make a Simple Calculator

Approach:

Write a program to find the Volume of the Rectangular Prism

Python Numbers

You may also like