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From: David Reiss on 12 Apr 2010 06:45
In[9]:= f[x_] := x

In[10]:= UpValues[f]

Out[10]= {}

In[11]:= DownValues[f]

Out[11]= {HoldPattern[f[x_]] :> x}

In[12]:= ?? f

Global`f

f[x_]:=x



--David

On Apr 11, 4:33 am, Michael Young <michaelcharlesyo...(a)earthlink.net>
wrote:
> Hello,
>
> I seem to have accidentally 'orphaned' three functions i built .
>
> That is, the code is still active in memory, and the function name
> shows in black and displays its intended data ; however, the file's
> copies of the functions' source-code have been modified and recompiled
> under different names, for different purposes .
>
> Is there a way to retrieve function source-code in Mathematica ?
>
> Michael


From: becko on 12 Apr 2010 06:50
Perhaps you can try something like:

f[x_] := x^2

?? f

The line input ??f should return the code to your function.


--------------------------------------------------
From: "Michael Young" <michaelcharlesyoung(a)earthlink.net>
Sent: Sunday, April 11, 2010 3:33 AM
To: <mathgroup(a)smc.vnet.net>
Subject: Retrieving orphaned code

> Hello,
>
>
> I seem to have accidentally 'orphaned' three functions i built .
>
> That is, the code is still active in memory, and the function name
> shows in black and displays its intended data ; however, the file's
> copies of the functions' source-code have been modified and recompiled
> under different names, for different purposes .
>
> Is there a way to retrieve function source-code in Mathematica ?
>
>
> Michael
>
>

From: dh on 12 Apr 2010 06:50
On 11.04.2010 10:33, Michael Young wrote:
> Hello,
>
>
> I seem to have accidentally 'orphaned' three functions i built .
>
> That is, the code is still active in memory, and the function name
> shows in black and displays its intended data ; however, the file's
> copies of the functions' source-code have been modified and recompiled
> under different names, for different purposes .
>
> Is there a way to retrieve function source-code in Mathematica ?
>
>
> Michael
>

Hi Michael,
Information[..] (or ?? for short) gives ther definitions.
cheers, Daniel

--

Daniel Huber
Metrohm Ltd.
Oberdorfstr. 68
CH-9100 Herisau
Tel. +41 71 353 8585, Fax +41 71 353 8907
E-Mail:<mailto:dh(a)metrohm.com>
Internet:<http://www.metrohm.com>


From: Bob Hanlon on 12 Apr 2010 06:51

f[a_, b_, c_, x_] := Module[{d, e, f},
d = a + b/2;
e = Exp[-c*x];
d*x^2 + e*x + c]

DownValues[f] // InputForm

{HoldPattern[f[a_, b_, c_, x_]] :> Module[{d, e, f},
d = a + b/2; e = Exp[(-c)*x]; d*x^2 + e*x + c]}

However, other Values could have been defined so

n = ToExpression[Names["*Values"]]

{DefaultValues,DownValues,DynamicModuleValues,FormatValues,
NValues,OwnValues,SingularValues,SubValues,UpValues}

Select[{#, #[f]} & /@ n, FreeQ[#[[2]], #[[1]]] &] // Quiet


Bob Hanlon

---- Michael Young <michaelcharlesyoung(a)earthlink.net> wrote:

=============
Hello,


I seem to have accidentally 'orphaned' three functions i built .

That is, the code is still active in memory, and the function name
shows in black and displays its intended data ; however, the file's
copies of the functions' source-code have been modified and recompiled
under different names, for different purposes .

Is there a way to retrieve function source-code in Mathematica ?


Michael


From: John Jowett on 12 Apr 2010 06:51
Michael, One way is to evaluate

?functionname

or, possibly,

??functionname

which should display all information on the current definition. You
can then copy and paste what you need into a new input cell.
John

On Apr 11, 10:33 am, Michael Young <michaelcharlesyo...(a)earthlink.net>
wrote:
> Hello,
>
> I seem to have accidentally 'orphaned' three functions i built .
>
> That is, the code is still active in memory, and the function name
> shows in black and displays its intended data ; however, the file's
> copies of the functions' source-code have been modified and recompiled
> under different names, for different purposes .
>
> Is there a way to retrieve function source-code in Mathematica ?
>
> Michael


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