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MathGroup Archive 1998

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Re: graphing implicit function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg14313] Re: [mg14226] graphing implicit function
  • From: Jurgen Tischer <jtischer at col2.telecom.com.co>
  • Date: Tue, 13 Oct 1998 01:21:27 -0400
  • References: <199810070700.DAA13690@smc.vnet.net.>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi David,
Load Graphics and use ImplicitPlot.
In[1]:= <<Graphics`

In[2]:= Z=.5;

In[3]:= ImplicitPlot[
  Y == 2 X Log[Y] / (4 Z Log [Y] - (1-Z) Log [2
X]),{X,0,2},{Y,0.0001,2},
  PlotPoints->500]

Jurgen


David Ridley wrote:

> I have a differential equation about which I'm trying to get some
> intuition.
>
> y'[x] = 1/2 + ((1-Z)(A-2x+B) / 2Z(A-2x+y[x]))
>
> I'd like to be able to graph it.
>
> I used a linear transformation and then integrated over X to obtain:
>
> Y = 2 X Log[Y] / (4 Z Log [Y] - (1-Z) Log [2 X])
>
> Is it possible to graph an implicit function like this using
> Mathematica?
>
> Thank you in advance for any assistance that you might be willing to
> provide.
>
> - David




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