[Haskell-cafe] How to build a generic spreadsheet?

[Bryan O'Sullivan]

Greg Fitzgerald wrote:
> I want to write a program where a user would update a bunch of 
> variables, and everything that depends on those variables (and nothing 
> else) are recalculated.

http://sigfpe.blogspot.com/2006/11/from-l-theorem-to-spreadsheet.html