For python.

Write your own module that can imported by other programs using the import module_name statement. Your module must contain mathematical algorithms in any field that you want. It must implement encapsulation, inheritance, polymorphism, and other concepts of OOP. You must only use OOP concepts. Also, do not use built-in or third party library that have ready-made functions/methods that do what your own module will do. Demonstrate the capabilities of your module by writing a program that uses it.