[Haskell-cafe] How to use roots package?

[Henning Thielemann]

James Cook schrieb:

> Those are both options,  as is to simply restart findRoot if it returns
> a 'Left' vaule.  I personally would incline toward a custom driver
> function (findRoot).  I should probably add one to the library that
> accepts a step limit and/or one that just iterates until convergence.

I thought that the mosts Haskellish way to do numerical iterations is to
generate a list of successive approximations (by List.iterate, of
course) and then let the user choose where and why he wants to abort the
list, and thus the iteration.