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NMinimize constraint bug

• To: mathgroup at smc.vnet.net
• Subject: [mg52835] NMinimize constraint bug
• From: "Joshua A. Solomon" <J.A.Solomon at city.ac.uk>
• Date: Tue, 14 Dec 2004 05:59:35 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

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

• Follow-Ups:
  • Re: NMinimize constraint bug
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>
  • Re: NMinimize constraint bug
    • From: DrBob <drbob@bigfoot.com>