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Re: NMinimize Bug in Mathematica 7.0?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg96262] Re: NMinimize Bug in Mathematica 7.0?
  • From: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>
  • Date: Tue, 10 Feb 2009 05:53:29 -0500 (EST)
  • References: <gmp0pi$c02$1@smc.vnet.net>

In my documentation the first example the result matches the answer I
get.It is the same as you obtain. Are you sure that you copied it from
the documentation correctly?

Cheers -- Sjoerd

On Feb 9, 12:33 pm, app... at att.net wrote:
> Here is an example from Mathematica's user's guide:
>
> In[8]:= NMinimize[x^4 - 3 x^2 + x, x]
>
> Out[8]=  {-3.513905039, {x -> -1.300839566}}
>
> however, trying to replicate it, I get the following:
>
> In[2]:= NMinimize[x^4 - 3 x^2 + x, x]
>
> Out[2]= {-1.070230182, {x -> 1.130901122}}
>
> One way to find the global min, I had to use a constraint such as x<0.
>
> Has anyone come across such a problem?
>
> In[3]:= $Version
>
> Out[3]= "7.0 for Microsoft Windows (32-bit) (November 10, 2008)"
>
> Thanks.



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