[Rd] Projects

[Paul Gilbert]

    DM> Putting that into a single function which took arguments just
    DM> like the ones you pass to the optimizer would be very
    DM> convenient.

>That's exactly it.  (but perhaps have at least the 3 basic forms --
>f(point + eps) - f(point), f(point + eps/2) - f(point - eps/2),
>f(point) - f(point - eps)).

Buried somewhere in one of my packages is code for doing Richardson
extrapolation, which usually gives a much better estimate than these 3 basic
forms. If this project goes ahead I will dig it out.

Paul Gilbert


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