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MathGroup Archive 2000

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Re: Undocumented Features In 4.0

  • To: mathgroup at smc.vnet.net
  • Subject: [mg24953] Re: [mg24938] Undocumented Features In 4.0
  • From: "Matt Herman" <Henayni at hotmail.com>
  • Date: Fri, 25 Aug 2000 00:02:26 -0400 (EDT)
  • References: <200008240908.FAA10582@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

Infimum (used in the analysis sense) is just the maximum of lower bounds for
a function (or a set).
Perhaps this is an exact value for findminimum?

Matt

----- Original Message -----
From: "Ersek, Ted R" <ErsekTR at navair.navy.mil>
To: mathgroup at smc.vnet.net
Subject: [mg24953] [mg24938] Undocumented Features In 4.0


> I was poking around the Wolfram Research FAQ web pages and went to
> http://support.wolfram.com/Kernel/Symbols/Developer/index.html
> and
> http://support.wolfram.com/Kernel/Symbols/Experimental/index.html
>
> There I found what looks like lists of all symbols in the Experimental and
> Developer contexts.  Several of the symbols listed there aren't documented
> in the Help Browser, but I was able to figure out how to use two of them.
> Below I demonstrate two of these undocumented features.  I couldn't figure
> out any of the other undocumented symbols listed at the above URLs.  If
you
> can figure them out please let me know.
>
>
> > In[1]:=
> > Developer`ContextFreeForm[aaa`x+bbb`y+z]
> >
> > Out[1]=
> > x+y+z
> >
> >
> > In[2]:=
> > Experimental`Infimum[11+6 x-10 x^2-5 x^3+2 x^4+x^5,-2<x<2,x]//InputForm
> >
> > Out[2]=
> > Root[-69847 - 171468*#1 - 129054*#1^2 - 24692*#1^3 + 3125*#1^4 & , 1]
> >
> > --------------------
> > Regards,
> > Ted Ersek
> >
> > Download Mathematica tips, tricks from
> > http://www.verbeia.com/mathematica/tips/Tricks.html
> >
>
>


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