To help me in learning Haskell I started blogging about some of the things I’ve looked at. 

One such topic was calculating square roots ‘by hand’ and then deriving a Haskell algorithm. 

I wrote about the well known  technique here

and it it is really quite a simple method. 

The second part of the post will be an implementation in Haskell. 

I then tried implementing it  and got something that works but really its not very pleasant to look at! And its something I don’t want to post! Some parts are fine but I think I locked myself into the notion that it had to be using State and  really the end result is pretty poor. 

I know this i perhaps a ‘big ask’ but I’d really appreciate any suggestions, solutions, hints etc. I will of course give full attribution. 

I’ve created a gist of the code here

Many Thanks

Mike