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MathGroup Archive 2004

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Re : wierd differential

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51051] Re : [mg51032] wierd differential
  • From: "Florian Jaccard" <florian.jaccard at eiaj.ch>
  • Date: Sun, 3 Oct 2004 05:47:18 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello !

Use E , not e !


F.Jaccard

-----Message d'origine-----
De : YOUNGWHAN [mailto:ywsong at buffalo.edu] 
Envoyé : samedi, 2. octobre 2004 09:18
À : mathgroup at smc.vnet.net
Objet : [mg51032] wierd differential


When I put

\!\(D[1 - e\^\(\(-2\) \((y + 1)\)\), y]\)

and, the result

\!\(2\ e\^\(\(-2\)\ \((1 + y)\)\)\ Log[e]\)

why Log[e] is added?





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