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MathGroup Archive 2000

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Caveat: Limit

  • To: mathgroup at smc.vnet.net
  • Subject: [mg23058] Caveat: Limit
  • From: Hendrik van Hees <h.vanhees at gsi.de>
  • Date: Sat, 15 Apr 2000 03:00:20 -0400 (EDT)
  • Organization: GSI Darmstadt
  • Sender: owner-wri-mathgroup at wolfram.com

I must really say that higher analysis with Mathematica 4.0 is full of
traps! Just to inform you:

During a (not too difficult) calculation I had to calculate

Limit[SinIntegral[p*a],a->Infinity]

After 

<<Calculus`Limit`

I got as a result Pi/2. This is of course only correct iff p>0. For p<0
the correct limit is -Pi/2. 

-- 
Hendrik van Hees		Phone:  ++49 6159 71-2755
c/o GSI-Darmstadt SB3 3.162	Fax:    ++49 6159 71-2990
Planckstr. 1			mailto:h.vanhees at gsi.de
D-64291 Darmstadt		http://theory.gsi.de/~vanhees/index.html


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