--- "Shapira, Yoav" <[EMAIL PROTECTED]> wrote:
> Howdy,
>
> >4. Thinking of the developers who will use this stuff, I feel like we
> >need a way to insulate them from having to think about rootfinding
> >strategy choice. As Al has pointed out, we are not (at least yet ;-))
> >in the AI business, so we can't automagically make the best choice for
> >them; but it might be a good idea to somehow specify a default
> strategy.
> > Unfortunately, the "safe" choice would likely be bisection. We
> >could obviously annoint bisection as the "default" by naming it
> >something like "Solver", but there might be simpler/better ways to do
> this.
> ><flame-invitation> I bet that in most real world applications the
> >difference in convergence speed is not a big deal and guaranteed
> >convergence/domain of application is more important than expected speed
> >of convergence. Consider, for example, our own use in CDF inversion to
> >get critical values for stat tests. </flame-invitation>.
>
> As someone who plans to use commons-math but does not plan to contribute
> code to it (though I do plan on testing, commenting in this forum, and
> using in production), I definitely need guaranteed convergence more than
> convergence speed.
>
> Yoav Shapira
>
>
>
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Phil,
Brent never replied about my patches to his bisection code, and now I have an
(as-yet untested) implementation of Ridders' method, which is a simple but
substantial improvement on bisection and not as complex as Brent or its
descendants. Should I just create attachments in Bugzilla so folks can examine
my code?
Al
=====
Albert Davidson Chou
Get answers to Mac questions at http://www.Mac-Mgrs.org/ .
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