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MathGroup Archive 2010

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Glitch with having Graphics along with printouts dynamically

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114928] Glitch with having Graphics along with printouts dynamically
  • From: Dims <dims12 at hotmail.com>
  • Date: Thu, 23 Dec 2010 03:53:03 -0500 (EST)

I have the following code

p = {1, 0};
Dynamic[
 Grid[{
   {
    v = Normalize[p];
    Graphics[{
      Circle[{0, 0}, 1],
      Line[{{0, 0}, v}],
      Locator[Dynamic[p]]
      },
     PlotRange -> {{-2, 2}, {-2, 2}}, ImageSize -> 500]
    },
   {ArcTan[v[[2]]/v[[1]]]}
   }]
 ]

to display both some dynamic graphics and information about it. But I
noticed, that the circle becomes ellipse somethimes. Why?


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