[Haskell-cafe] Near Semi Ring problem

Anthony Cowley acowley at gmail.com
Sat Apr 23 19:41:34 UTC 2022

> On Apr 23, 2022, at 3:25 PM, Henry Laxen <nadine.and.henry at pobox.com> wrote:
> Dear Group,
> Many years ago I read a fascinating article which I can't seem to find
> anymore.  It was about writing down (in english) the numbers from one to
> a billion? and being able to retrieve the nth letter.  ie:
> onetwothreefourfive...ninehundredninetymillion....ninetynineonebillion
> I remember it used near semi rings and automatic differentiation, but no
> matter how I use those words to search (both google and duckduck)  I
> can't find it.  Do any of you have a pointer.  I believe the code was
> written in haskell too.
> Best wishes,
> Henry Laxen

One of my all-time favorites, too!



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