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MathGroup Archive 2004

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Re: NMinimize constraint bug

  • To: mathgroup at smc.vnet.net
  • Subject: [mg52855] Re: NMinimize constraint bug
  • From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 15 Dec 2004 04:26:14 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <cpmi0t$odc$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

In[3]:=
{$Version, $ReleaseNumber}
Out[3]=
{5.0 for Microsoft Windows (November 18, 2003), 1}
In[1]:=
NMinimize[{-Log[ 1 - p1] - Log[1 - p2], LessEqual[.5, p1, p2, .9]}, {p1, 
p2}]
Out[1]=
{1.38629, {p1 -> 0.5, p2 -> 0.5}}

and it seems that you should consider an upgrade.
Regards
  Jens

"Joshua A. Solomon" <J.A.Solomon at city.ac.uk> schrieb im Newsbeitrag 
news:cpmi0t$odc$1 at smc.vnet.net...
> In[1]:={$Version, $ReleaseNumber}
> Out[1]={5.0 for Mac OS X (June 10, 2003), 0}
>
> In[2]:= NMinimize[{-Log[ 1-p1]-Log[1-p2],LessEqual[.5,p1,p2,.9]},{p1,p2}]
>
> NMinimize::nrnum: The function value -0.57913-3.14159\\[ImaginaryI] is not 
> a
> \
> real number at {p1,p2} = {2.46921,-0.214585}.
>
> NMinimize::nrnum: The function value -0.57913-3.14159\\[ImaginaryI] is not 
> a
> \
> real number at {p1,p2} = {2.46921,-0.214585}.
>
> NMinimize::nrnum: The function value -0.57913-3.14159\\[ImaginaryI] is not 
> a
> \
> real number at {p1,p2} = {2.46921,-0.214585}.
>
> etc.
>
> Comments?
>
> js
> -- 
> Joshua A. Solomon
> http://www.staff.city.ac.uk/~solomon
> 



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