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Re: Other bug in ContourPlot

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  • Subject: [mg81699] Re: [mg81653] Other bug in ContourPlot
  • From: Carl Woll <carlw at>
  • Date: Tue, 2 Oct 2007 05:26:16 -0400 (EDT)
  • References: <>

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.
>The last version 6.0.1 is like a Gruyere chees: it is completed with
>innumerable holes.
The contour plot in question is:

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

ContourPlot[sol == 0, {x, -6, 6}, {y, -6, 6}]

The above contour plot produces an empty graphic because there are no 
points in the given rectangle that satifsfy the equation sol==0.

Carl Woll
Wolfram Research

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