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MathGroup Archive 1997

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Re: Limit bug in Calculus\Limit ???

  • To: mathgroup at smc.vnet.net
  • Subject: [mg8554] Re: [mg8488] Limit bug in Calculus\Limit ???
  • From: Paul Abbott <paul at physics.uwa.edu.au>
  • Date: Sat, 6 Sep 1997 23:16:20 -0400
  • Organization: University of Western Australia
  • Sender: owner-wri-mathgroup at wolfram.com

David Withoff wrote:

> Actually, since this limit depends on direction, both answers
> are arguably correct.
> 
> In[1]:= Limit[E^(2/y), y -> 0, Direction -> 1]
> 
> Out[1]= 0
> 
> In[2]:= Limit[E^(2/y), y -> 0, Direction -> -1]
> 
> Out[2]= Infinity

However, after loading

  In[1]:= <<"Calculus`Limit`"

you find

  In[2]:= Limit[E^(2/y), y -> 0, Direction -> -1]
  Out[2]= 0

which is arguably incorrect?

Cheers,
	Paul 

____________________________________________________________________ 
Paul Abbott                                   Phone: +61-8-9380-2734
Department of Physics                           Fax: +61-8-9380-1014
The University of Western Australia           
Nedlands WA  6907                     mailto:paul at physics.uwa.edu.au 
AUSTRALIA                              http://www.pd.uwa.edu.au/Paul

            God IS a weakly left-handed dice player
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