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MathGroup Archive 2005

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Re: Removed[$$Failure] in Integrate

  • To: mathgroup at smc.vnet.net
  • Subject: [mg61953] Re: [mg61928] Removed[$$Failure] in Integrate
  • From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
  • Date: Sun, 6 Nov 2005 05:11:29 -0500 (EST)
  • References: <200511050652.BAA01952@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

On 5 Nov 2005, at 15:52, Pratik Desai wrote:

> Hi folks
>
> Has any body come across this while using Integrate
>
>  Removed[$$Failure]
>
> What does this mean? Besides the obvious explanation
>
> Please advise
>

My question is: what is "the obvious explanation"?

At the risk of being too obvious let me just give an example of the  
way Removed[symbol] usually appears in Mathematica:

In[1]:=
dog=cat;

In[2]:=
Remove[cat]

In[3]:=
dog

Out[3]=
Removed[cat]

Well, possibly some part of the code returned $$Failure, which was  
then assigned to some variable and then Removed, leaving behind   
Removed[$$Failure] . Most likely a bug.

Andrzej Kozlowski


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