I have taken the Duplex algorithm that I’ve described here and put a user interface in front of it. It’s the same number that is discussed above, maybe this helps with visualization as you read the original post.
Hopefully, I can manage to work a dynamic tutorial into it, just like I have done for the calendar calculation app, so that people not familiar with this method for square roots have an easy way of familiarizing themselves with it.
The format is that of the Mental Calculation World Cup, where each question has a 6-digit number whose square root must be found to 5 decimal places