Re: DownValues

*To*: mathgroup at smc.vnet.net*Subject*: [mg113710] Re: DownValues*From*: Leonid Shifrin <lshifr at gmail.com>*Date*: Mon, 8 Nov 2010 05:39:30 -0500 (EST)

Hi Stephan, You want to look at SubValues. ?SubValues SubValues[f] gives a list of transformation rules corresponding to all subvalues (values for f[x,\[Ellipsis]][\[Ellipsis]], etc.) defined for the symbol f. These are not much documented in the system, but you can search for SubValues in the newsgroup archive and find much more. I also briefly mention them in my book, at http://www.mathprogramming-intro.org/book/node92.html Hope this helps. Regards, Leonid On Mon, Nov 8, 2010 at 11:39 AM, Stephan <stschiff80 at googlemail.com> wrote: > Hi, > > Is there any way to find out about definitions like: > > f[1][2] = 3 ? > > Here is a sample run: > > In[1]:= f[1][2] = 3 > Out[1]= 3 > In[2]:= DownValues[f] > Out[2]= {} > In[3]:= DownValues[f[1]] > During evaluation of In[3]:= DownValues::"sym" : " > StyleBox[\"\\\"\< is expected to be a symbol.\>\\\"\", \"MT\"] \ > Out[3]= DownValues[f[1]] > > So with "DownValues" I can't seem to learn about the definition f[1][2]... > > Thanks in advance, > > Stephan > >