Re: Other bug in ContourPlot
- To: mathgroup at smc.vnet.net
- Subject: [mg81706] Re: [mg81653] Other bug in ContourPlot
- From: DrMajorBob <drmajorbob at bigfoot.com>
- Date: Tue, 2 Oct 2007 05:29:53 -0400 (EDT)
- References: <12684416.1191251617663.JavaMail.root@m35>
- Reply-to: drmajorbob at bigfoot.com
No bug. In the second ContourPlot, you used x and y ranges entirely WITHIN
the ellipse, so the ellipse couldn't be seen.
sol = x^2/9 + y^2/16 - 25;
ContourPlot[sol == 0, {x, -20, 20}, {y, -20, 20}]
or
Show[ContourPlot[sol == 0, {x, -20, 20}, {y, -20, 20}],
Graphics@{Red, Rectangle[{-6, -6}, {6, 6}]}]
Bobby
On Mon, 01 Oct 2007 03:37:02 -0500, Miguel <misvrne at gmail.com> 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.
>
>
>
--
DrMajorBob at bigfoot.com