Services & Resources / Wolfram Forums
MathGroup Archive
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: List of user-defined derivatives

  • To: mathgroup at
  • Subject: [mg71614] Re: List of user-defined derivatives
  • From: "Andrew Moylan" <andrew.j.moylan at>
  • Date: Sat, 25 Nov 2006 05:36:51 -0500 (EST)
  • References: <><ek642v$91p$>

Hi all,

Since posting my message I discovered that these definitions are found
in SubValues[Derivative]. As a side note, does anyone know why
SubValues is largely undocumented, whereas UpValues and DownValues are


On Nov 24, 5:39 pm, "Chris Chiasson" <c... at> wrote:
> they're probably stored in the DownValues of Derivative
> On 11/23/06, Andrew Moylan <andrew.j.moy... at> 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--

  • Prev by Date: Re: pattern matching: rules that stop other rules?
  • Next by Date: Re: AGAIN Nested while loop!!!
  • Previous by thread: Re: List of user-defined derivatives
  • Next by thread: Re: Re: List of user-defined derivatives