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Re: PlotPoints in plot

  • To: mathgroup at
  • Subject: [mg48551] Re: PlotPoints in plot
  • From: Jens-Peer Kuska <kuska at>
  • Date: Sat, 5 Jun 2004 07:18:52 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <c9pe8k$psr$>
  • Reply-to: kuska at
  • Sender: owner-wri-mathgroup at


the best what you can get is

Plot[Sqrt[1 - x^2], {x, -1, 1}, PlotPoints -> 3, PlotDivision -> 1]


"G.L.Narasimham" wrote:
> For the plot command  Plot[Sqrt[1-x^2],{x,-1,1},PlotPoints->3]
> I expected to see a triangle joining 3 points on a circle, but a
> continuous line ( default PlotPoints->20? )appears. However,
> ParametricPlot3D[{Cos[t],Sin[t],0},{t,0,Pi},PlotPoints->3,ViewPoint->{0,0,5}]
> gives a triangle. How to get a polygon of straight sides in the
> unparametered Plot?

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