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MathGroup Archive 2007

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Re: Any way to exclude branch-cut fills in this plot?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg80434] Re: [mg80409] Any way to exclude branch-cut fills in this plot?
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Wed, 22 Aug 2007 04:48:09 -0400 (EDT)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • References: <200708210910.FAA14964@smc.vnet.net>
  • Reply-to: murray at math.umass.edu

Did you try the Exclusions option?

chuck009 wrote:
> Here's a principle sheet plot of the Mathieu complex exponent:
> 
> p4 = ParametricPlot3D[
>      {Re[z], Im[z], Evaluate[Im[MathieuCharacteristicA[3, z]]]} /. 
>        z -> r*Exp[I*t], {r, -10, 10}, {t, 0, 2*Pi}, 
>   PlotPoints -> {40, 40}, 
>      PlotRange -> All, Mesh -> All]
> 
> Note the cliffs at the branch-cuts.  Can anyone suggest a method to remove the fill to obtain a nice clean plot?
> 
> Thanks!
> Charles
> 

-- 
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305


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