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MathGroup Archive 2005

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Re: Plotting a super ellipse

  • To: mathgroup at smc.vnet.net
  • Subject: [mg55158] Re: Plotting a super ellipse
  • From: Peter Pein <petsie at arcor.de>
  • Date: Tue, 15 Mar 2005 00:21:40 -0500 (EST)
  • References: <d0u71l$kno$1@smc.vnet.net> <d1145m$dp2$1@smc.vnet.net> <d13j99$qll$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

JC wrote:
> On Sun, 13 Mar 2005 10:20:38 +0000 (UTC), Peter Pein <petsie at arcor.de>
> wrote:
...
>>Hi JC,
>>
>>use ImplicitPlot to plot implicitely ;-) and Abs[] to avoid imaginary
>>Parts (e.g. (-1)^(2.5))
>>
>>ImplicitPlot[Abs[(x^2.5) + (y^2.5/1.25^2.5)] == 20., {x, -4, 4}, {y, -5, 5}]
> 
> 
> Peter,
> 
> Thank you very much for taking the time to reply.
> 
> Your suggestion, while not generating an error message, also did not
> plot.  This is what it returned:
>  
> ImplicitPlot[
>     Abs[x\^2.5` + 0.5724334022399462`\ y\^2.5`] == 20.`, {x, \(-4\), 
>       4}, {y, \(-5\), 5}]\)
> 
> 

Sorry, again and again I forget: I've put <<Graphics` into my init.m 
file. Enter <<Graphics`ImplicitPlot` or just <<Graphics` _before_ 
invoking ImplicitPlot[].


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