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MathGroup Archive 2007

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Re: Mathematica help

  • To: mathgroup at smc.vnet.net
  • Subject: [mg75059] Re: Mathematica help
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Mon, 16 Apr 2007 04:07:28 -0400 (EDT)
  • Organization: The Open University, Milton Keynes, UK
  • References: <evspvp$j2$1@smc.vnet.net>

liltammer4 at aol.com wrote:
> I don't know how to graph the curve x^2y^3-y^4=1 for x ranging from -3
> to 3.
> Here is what I have and I don't understand what the problem is???
> 
> Plot[x^2 y^3 - y^4 == 1, {x, -3, 3}]
> 
> 

The curve is implicitly defined. You can use ImplicitPlot [1] as in

  Needs["Graphics`ImplicitPlot`"];
  ImplicitPlot[ x^2 y^3- y^4==1, { x, -3,3}];

Regards,
Jean-Marc

[1] 
http://documents.wolfram.com/mathematica/Add-onsLinks/StandardPackages/Graphics/ImplicitPlot.html


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