calculator-package-GUSAEZG 0.0.1

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Module 1: Data Wrangling with Python

Sprint 1: Python Mastery

Part 5: Calculator

The following project consists of a calculator written with Python. It contains a Calculator class. This class has an internal memory, whose initial value is 0, and can perform a number of operations, which will modify the value in memory:

-Add a value to the value stored in memory -Subtract a value to the value stored in memory -Multiply a value by the value stored in memory -Divide the value stored in memory by another value -Calculate the nth root of the value stored in memory -Reset the value stored in memory to 0

Since all operations (except resetting the value in memory) require an argument, two assertions have been included in order to make sure a valid argument is passed: -For all operations, the argument passed must be a number (either an int or a float). Otherwise, an AssertionError will be raised -Furthermore, to calculate the nth root of the value in memory, the argument passed cannot be 0. This is to prevent division by 0 (since the nth root of a number is equal to said number to the 1/nth power)

Here is a practical example of how the application works

calculator = Calculator()
calculator.add(10)
calculator.subtract(5)
calculator.multiply(4)
calculator.divide(5)
calculator.calculate_nth_root(2)
calculator.reset_memory()

In order to make sure the application works properly, unit tests have been written for all operations and assertions. unittest has been imported for this purpose.