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Re: Exclusions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg88018] Re: Exclusions
  • From: Fiona H Evans <fevans at agric.wa.gov.au>
  • Date: Tue, 22 Apr 2008 06:26:30 -0400 (EDT)
  • References: <fuhqv0$rgt$1@smc.vnet.net> <fuin0b$9le$1@smc.vnet.net>

On Apr 22, 2:39 am, Jean-Marc Gulliet <jeanmarc.gull... at gmail.com>
wrote:

Thanks Jean-Marc,

My first post here - I have discovered the limitations of copying and
pasting. In my notebook, the syntax is correct.

I don't expect an automatic exclusion, but I do get an additional
(unwanted) exclusion at y==0 && x<0 when I use the following command:

Plot3D[ pdfN[{x, y}], {x, -3, 3}, {y, -3, 3}, PlotRange -> Full,
 Mesh -> 30,  ColorFunction -> grayColors, PlotPoints -> 50,
 ClippingStyle -> None,
 Exclusions -> { {ArcTan[x, y] == 0.5,
    x > 0 && y > 0}, {ArcTan[x, y] == -Pi + 0.5, x < 0 && y < 0}},
 ExclusionsStyle -> {None, Directive[Thick, Red]}, MaxRecursion -> 0,
 AxesLabel -> {"x", "y"}]

Regards, Fiona.


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