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Re: problems with NMinimize

  • To: mathgroup at smc.vnet.net
  • Subject: [mg109405] Re: problems with NMinimize
  • From: "Alexey Popkov" <lehin.p at gmail.com>
  • Date: Sun, 25 Apr 2010 06:25:43 -0400 (EDT)
  • References: <hqu8ai$rol$1@smc.vnet.net>

"Ingolf Dahl" <ingolf.dahl at physics.gu.se> ÓÏÏÂÝÉÌ/ÓÏÏÂÝÉÌÁ × ÎÏ×ÏÓÔÑÈ 
ÓÌÅÄÕÀÝÅÅ: news:hqu8ai$rol$1 at smc.vnet.net...
> Is there any serious Mathematica user in this forum, which has not 
> stumbled
> on this problem one or several times, when NMinimize, or some other
> function, tries to evaluate a numeric function symbolically first, before
> inserting the numbers? Sometimes it would be nice to have an option,
> SymbolicEvaluation->False, which could be set for NMinimize in these 
> cases.
> It is not always so convenient to have to define an extra function just to
> take care of this. I think there is a whole group of commands acting
> similarly to NMinimize.
>
> Ingolf Dahl
> Sweden

I totally agree with you. I do not see anything reasonable in that obviously 
numerical function (for example, NMinimize, FindMinimum, etc.) is trying for 
some reason to perform symbolic computation. 




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