Re: Problem
- To: mathgroup at smc.vnet.net
- Subject: [mg43009] Re: [mg42967] Problem
- From: "Andrew Thomas" <Andrew.Thomas at oft.gsi.gov.uk>
- Date: Fri, 8 Aug 2003 00:26:24 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Thank you all very much for your help and advice.
best wishes,
Andrew
>>> Janak Wedagedera <janak at maths.warwick.ac.uk> 08/07/03 09:18am >>>
It is not clear whether you want to plot
1. y as a function of x with c as a parameter
or
2. just a plot of the surface defined by c.
Case 1: Solve[y^2 - y + x - x^2 -c ==0,y]
and then use the solution for y to make the plot
Case 2:
c = (x - x^2) + (y - y^2);
Plot3D[c, {x, 0, 1}, {y, 0, 1}]
- Janak.
On Thu, 7 Aug 2003, 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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--
------------------------------------
Janak R Wedagedera
Mathematics Institute
University of Warwick
Coventry
CV4 7AL
U.K.
e-mail: janak at maths.warwick.ac.uk
janak at maths.ruh.ac.lk
phone: 44 02476 523698 (office)
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