Simple Calculator in Python

Python class for basic math operations.

Package calculator contains Python class Calculator that performs basic mathematical operations, including:

• addition;
• subtraction;
• scalar multiplication;
• division;
• exponentiation;
• taking square root and n-th root.

Details

Class attributes:

• .result -- contains a numeric value of current result. Initial default value is 0.

Class methods:

• .add(), .subtract(), .multiply_by(), .divide_by(), .exponentiate(), .take_n_root(), .sqrt() -- These methods perform mathematical operations (addition, subtraction, scalar multiplication, division, exponentiation, taking n-th root, and taking square root respectively) on numeric value of .result (attribute) and number provided by the user and saves the result as .result.
• .reset() -- This method resets the .result to 0 (default) or other user defined value.

Installation

Install from PyPi:

pip install calculator_vg

Install from GitHub:

pip install git+https://github.com/GegznaV/calculator-py.git

Get Docker image from Docker Hub with this package installed:

docker pull gegznav/calculator-py

Usage

>>> from calculator.calculator import Calculator

>>> calculator = Calculator()
>>> calculator.reset(to=35)
>>> calculator.result
35.0
>>> calculator.reset()
>>> calculator.result
0.0
>>> calculator.subtract(10)
>>> calculator.result
-10.0
>>> calculator.add(46)
>>> calculator.take_n_root(n=2)
>>> calculator.result
6.0
>>> calculator.reset()
>>> calculator.result
0.0

GitHub Repository

GitHub repo (with continuous integration) that hosts the project:

• https://github.com/GegznaV/calculator-py

License

This project is licensed under the terms of the MIT license.

Author

Vilmantas Gėgžna