Introduction
Xybernetics Algorithm to Validate User Entered Credit Card NumberI am writing an eCommerce library so that it can be “Lego” into a webpage for shopping cart module of a webpage. You might think that I am reinventing a wheel but for me, this is just an academic experience and potentially might develop into a product in my own company’s product in future.

Anyway, the image below outlines how a user entered credit card number (while checking-out) is actually a valid number.

Xybernetics Algorithm to Validate User Entered Credit Card Number

Happy programming!