Re: Incorrect plotting of Lissajous-figures
- To: mathgroup at smc.vnet.net
- Subject: [mg25904] Re: [mg25890] Incorrect plotting of Lissajous-figures
- From: Reza Malek-Madani <research at usna.edu>
- Date: Tue, 7 Nov 2000 23:04:54 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Rene: Try
ParametricPlot[{Cos[500t], Cos[500t + Pi/4]}, {t, 0, 2Pi}, PlotPoints ->
1000]
to get the ellipse.
Reza.
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Reza Malek-Madani Director of Research
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On Tue, 7 Nov 2000, Rene Meyer wrote:
> Hello,
>
> while using Mathematica 4.0.2.0 to plot a Lissajous-figure with
>
> ParametricPlot[{Cos[500t], Cos[500t + Pi/4]}, {t, 0, 2Pi}]
>
> I found that with growing coefficients of t the figure (which should
> be a ellipse with an angle of 45 degrees between its longer main axis and
> the x axis) have the effect of filling up the whole ellipse with
> points. Is this an effect of rounding errors or is this a bug in
> mathematica?
>
> --
> Rene Meyer
> Student of Physics - Chemnitz University of Technology
>
>