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MathGroup Archive 2007

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Minimize[] Problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg76317] Minimize[] Problem
  • From: anguzman at ing.uchile.cl
  • Date: Sat, 19 May 2007 04:48:45 -0400 (EDT)

Hello.

Why do I get?

In[4]:=
Minimize[(x^4-6 x^2+1)^2,{x}]
Out[4]=
{1,{x->0}}

when..

In[3]:=
(x^4-6 x^2+1)^2/.x->1-Sqrt[2]//Simplify
Out[3]=


x=0 is actually a local maximum.
Any answer will be appreciated.

Atte Andres Guzman

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