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[].