tc-ds-2023-calculator 1.0.0

Contains Calculator Class used for performing basic arithmetic operations

Calculator package

Summary

The package contains a calculator class which is a python representation of a calculator. Calculator objects are used to perform the following operations:

• Addition

• Subtraction

• Multiplication

• Division

• Taking n-th root of a positive number.

• Reseting the memory

Installation

To install the package:

pip install tc-ds-2023-calculator

Using the package

To import the package:

from calculator import Calculator

Instantiating an object:

obj = Calculator(memory=0)

Memory stores the initial value which will later be manipulated. The variable is 0 by default but can be set to any other number of type int or float.

Operator behaviour and instance methods

Operators:

The class uses operator overloading for addition, subtraction, multiplication and division operations.

+	Addition
-	Subtraction
*	Multiplication
/	Division

These operations are done in a following manner:

object <operator> input

Example:

>>> obj = Calculator(2)
>>> obj
    Calculator(2)
>>> obj + 2
>>> obj
    Calculator(4)
>>> obj/2
>>> obj
    Calculator(2)
>>> obj * 3
>>> obj
    Calculator(6)
>>> obj / 2
>>> obj
    Calculator(3)

Methods:

Calculator class provides following methods:

.root(n=2)	Takes the n-th root of a positive number stored in the calculator memory. The n value must be an integer number. Only works with positive memory numbers even when n is odd. Takes the square root by default
.reset()	Sets the calculator memory to 0
.get_num()	Returns calculator memory

Example:

>>> obj = Calculator(4)
>>> obj.root()
>>> obj
    Calculator(2)
>>> obj.reset()
>>> obj
    Calculator(0)
>>> obj.get_num()
    0

Testing

Install dependencies:

pip install -r requirements.txt

Test:

python3 -m unittest