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Re: Corrupt graphics output

  • To: mathgroup at smc.vnet.net
  • Subject: [mg90696] Re: [mg90667] Corrupt graphics output
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Sat, 19 Jul 2008 04:51:58 -0400 (EDT)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • References: <200807180803.EAA26827@smc.vnet.net>
  • Reply-to: murray at math.umass.edu

I'm not seeing any corruption at PlotPoints->{150,150} compared to 
PlotPoints->{120,120}.  That's Mathematica 6.0.3 under Windows XP.

I presume the main reason you want to set the value of PlotPoints is in 
order to see the poles with smaller real part.  But you might try using 
MaxRecursion instead of PlotPoints.


Paul M wrote:
> Hello,
> 
> I was playing around with Mathematica the other day and was attempting
> to graph the modulus of the complex-valued gamma function.  When I use
> a PlotPoints value of 120 the graph looks fine.  However, the 
> following command yields a corrupt graph (PlotPoints value of 150).
> 
> Plot3D[Abs[Gamma[x + I y]], {x, -5, 5}, {y, -5, 5}, 
>  PlotPoints -> {150, 150}, PlotRange -> {0, 10}, 
>  BoxRatios -> {1, 1, 0.8}, AxesLabel -> {x, I y, Abs[Gamma[z]]}]
> 
> Anyone know the reason for this and possible solutions?
> 
> Thank you,
> Paul
> 

-- 
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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