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Re: Other bug in ContourPlot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg81737] Re: Other bug in ContourPlot
  • From: Szabolcs Horvát <szhorvat at gmail.com>
  • Date: Tue, 2 Oct 2007 05:45:57 -0400 (EDT)
  • References: <fdqbjj$ljj$1@smc.vnet.net>

Miguel wrote:
> If you run the ContourPlot a first time, it works fine. But, if you
> run ContourPlot again, the graphics previous or nothing is displayed.
> 
> http://mathematicaes.googlegroups.com/web/ContourPlotBis.pdf
> 
> The last version 6.0.1 is like a Gruyere chees: it is completed with
> innumerable holes.
> 
> 

In the second case, the curve does not fit in {{-6,6},{-6,6}}.

Try

sol = x^2/9 + y^2/16 - 25

ContourPlot[sol==0,{x,-16,16},{y,-20,20},AspectRatio->Automatic]

-- 
Szabolcs


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