Re: Removed[$$Failure] in Integrate

*To*: mathgroup at smc.vnet.net*Subject*: [mg61963] Re: [mg61928] Removed[$$Failure] in Integrate*From*: Pratik Desai <pdesai1 at umbc.edu>*Date*: Sat, 5 Nov 2005 22:41:48 -0500 (EST)*References*: <200511050652.BAA01952@smc.vnet.net> <4E83B469-8FE3-4453-B393-0E1C4400CAFD@mimuw.edu.pl>*Sender*: owner-wri-mathgroup at wolfram.com

Andrzej Kozlowski wrote: > > On 5 Nov 2005, at 15:52, Pratik Desai wrote: > >> Hi folks >> >> Has any body come across this while using Integrate >> >> Removed[$$Failure] >> >> What does this mean? Besides the obvious explanation >> >> Please advise >> > > My question is: what is "the obvious explanation"? That it is a bug ;-) > > At the risk of being too obvious let me just give an example of the > way Removed[symbol] usually appears in Mathematica: > > In[1]:= > dog=cat; > > In[2]:= > Remove[cat] > > In[3]:= > dog > > Out[3]= > Removed[cat] > > Well, possibly some part of the code returned $$Failure, which was > then assigned to some variable and then Removed, leaving behind > Removed[$$Failure] . Most likely a bug. Thanks Andrzej this is exactly what I was looking for. Using Integrate these days reminds me of a quotation by Laplace "Nature laughs at the difficulties of integration." :-) > > > Andrzej Kozlowski > Best Regards, Pratik -- Pratik Desai Graduate Student UMBC Department of Mechanical Engineering Phone: 410 455 8134

**References**:**Removed[$$Failure] in Integrate***From:*Pratik Desai <pdesai1@umbc.edu>