Re: Problem
- To: mathgroup at smc.vnet.net
- Subject: [mg43024] Re: [mg42967] Problem
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Fri, 8 Aug 2003 00:26:38 -0400 (EDT)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <200308070453.AAA23993@smc.vnet.net>
- Reply-to: murray at math.umass.edu
- Sender: owner-wri-mathgroup at wolfram.com
You'll want to use the Standard AddOn package Graphics`ImplicitPlot`.
After loading the package...
<< Graphics`ImplicitPlot`
use ImplicitPlot perhaps like this
ImplicitPlot[x - x^2 + y - y^2 == -3, {x, -5, 5}, {y, -5, 5}];
or like this:
ImplicitPlot[x - x^2 + y - y^2 == -3, {x, -5, 5}];
Both plot the same curve (but with different ranges on the axes).
Mathematica uses one of two different methods to generate the curves --
in the first instance, by using Solve; in the second instance, by
forming a contour. See the HelpBrowser documentation.
Andrew Thomas wrote:
> Dear All,
>
> This is a simple one but I cannot find out how to plot the following.
>
> c=(x-x^2)+(y-y^2) where c is a constant.
>
> The problem is that everytime I go to plot the plot is always defined
> as y=f(x,...) and so I cannot enter y^2 into the equation.
>
> Could someone please advise.
>
> Thank you and best wishes,
>
> Andrew
>
>
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--
Murray Eisenberg murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 413 549-1020 (H)
University of Massachusetts 413 545-2859 (W)
710 North Pleasant Street fax 413 545-1801
Amherst, MA 01003-9305
- References:
- Problem
- From: "Andrew Thomas" <Andrew.Thomas@oft.gsi.gov.uk>
- Problem