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MathGroup Archive 2002

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Re: [Q] Plotting Inequalities

  • To: mathgroup at smc.vnet.net
  • Subject: [mg33584] Re: [Q] Plotting Inequalities
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 2 Apr 2002 03:36:32 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <a81iff$755$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

what may

<<Graphics`InequalityGraphics`

and

With[{x3 = 2}, 
  InequalityPlot[x1 <= x2 + x3 && x2 <= x1 + x3 && x3 <= x1 + x2,
    {x1, -4, 4}, {x2, -4, 4}]]

do ?

Regards
  Jens

Janusz Kawczak wrote:
> 
> Hello:
> 
> is there a readily available function for plotting filled in region
> that is contained within a system of inequalities in dimensions
> higher than 2 (well this leaves us with 3). I would like to see
> the region of {x_1<=x_2+x_3 && x_2<=x_1+x_3 && x_3<=x_1+x_2}
> filled in. Of course this is the simplest system I have in mind.
> 
> Thank you.
> 
> Janusz.


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