https://github.com/inforkgodara/python-calculator

It is a basic python calculator.
https://github.com/inforkgodara/python-calculator

calculator inforkgodara multiplication python python-calculator subtraction

Last synced: 16 days ago
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It is a basic python calculator.

• Host: GitHub
• URL: https://github.com/inforkgodara/python-calculator
• Owner: inforkgodara
• Created: 2020-07-04T18:38:16.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-08-16T10:45:04.000Z (over 4 years ago)
• Last Synced: 2024-10-30T08:21:09.712Z (2 months ago)
• Topics: calculator, inforkgodara, multiplication, python, python-calculator, subtraction
• Language: Python
• Homepage:
• Size: 4.88 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Python Calculator

It is a basic python calculator which can perform basic arithmetic operations like addition, subtraction, multiplication. Python 3.8 is used for the implementation.

## Approach

* User enter number (single digit or n character) to perform a specific operation like 1, 2, 3, 4 and n (n is to cancel calculation operation) are valid.

* Taking two numbers as inputs and used branching if elif else to perform a particular section.

* Using functions add(), subtract(), multiply() to perform specific task after given data to the system.

## Code

```

# Program make a basic calculator

# Author @inforkgodara

# Function adds two numbers

def add(first_number, second_number):

    return first_number + second_number

# Function subtracts two numbers

def subtract(first_number, second_number):

    return first_number - second_number

# Function multiplies two numbers

def multiply(first_number, second_number):

    return first_number * second_number

# Function divides two numbers

def divide(first_number, second_number):

    return first_number / second_number

print('Select options.')

print('1. Add')

print('2. Subtract')

print('3. Multiply')

print('4. Divide')

while True:

    # Take input from the console

    choice = input('Enter choice(1/2/3/4 or n to cancel): ')

    # Check if choice is one of the five options

    if choice in ('1', '2', '3', '4'):

        first_number = float(input('Enter first number: '))

        second_number = float(input('Enter second number: '))

        if choice == '1':

            print(first_number, '+', second_number, '=', add(first_number, second_number))

        elif choice == '2':

            print(first_number, '-', second_number, '=', subtract(first_number, second_number))

        elif choice == '3':

            print(first_number, '*', second_number, '=', multiply(first_number, second_number))

        elif choice == '4':

            print(first_number, '/', second_number, '=', divide(first_number, second_number))

    elif choice == 'n':

        print('Your are successfully logged out!')

        break

    else:

        print('Please enter correct input among these 1/2/3/4/n')

```