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Re: Re: List of user-defined derivatives


I guess I guessed incorrectly :-]

On 11/25/06, Peter Pein <petsie at dordos.net> wrote:
> Chris Chiasson schrieb:
> > they're probably stored in the DownValues of Derivative
> >
> > On 11/23/06, Andrew Moylan <andrew.j.moylan at gmail.com> wrote:
> >> Hi all,
> >>
> >> When the derivative of a function is specified like this:
> >>   f' = 6 &;
> >> or alternatively like this:
> >>   f'[x_] = 6;
> >> the definitions are not stored in UpValues[f] or DownValues[f]. I
> >> understand this is why Clear[f] doesn't clear definitions for
> >> derivatives. My question is: where are these definitions stored, and
> >> how can one obtain a list of user-defined derivatives such as this one?
> >>
> >> Cheers,
> >> Andrew
> >>
> >>
> >
> >
> They are in SubValues[Derivative] in the form
> HoldPattern[Derivative[1][f][x_]] :> 6
>
> P²
>
>


-- 
http://chris.chiasson.name/


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