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MathGroup Archive 2007

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Re: Showing defined functions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73156] Re: [mg73121] Showing defined functions
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Mon, 5 Feb 2007 00:09:50 -0500 (EST)
  • Reply-to: hanlonr at cox.net

ClearAll[functionQ];
SetAttributes[functionQ,{Listable}];
functionQ[x_String]:=functionQ[ToExpression[x]];
functionQ[x_Symbol]:=Length[
        Flatten[#[x]&/@{DownValues,UpValues}]]>0;
functionQ[x_]=False;

y=7;

f1[x_]:=x;
f2[x_]=2x;
f3/:Mean[f3[x_]]:=a;

Names["Global`*"]

{a,f1,f2,f3,functionQ,x,y}

Select[Names["Global`*"],functionQ[#]&]

{f1,f2,f3,functionQ}


Bob Hanlon

---- 360 <360 at 360.com> wrote: 
> I have defined a series of functions in Mathematica. I was wondering, is
> there anyway to get Mathematica to dsiplay all currnte defined functions
> that are being stored in memory (something similar to the 'who' command
> in another system.
> 
> thanks
> 


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