Re: ContourPlot and lines vrs. 8.0

• To: mathgroup at smc.vnet.net
• Subject: [mg116281] Re: ContourPlot and lines vrs. 8.0
• From: Bob Hanlon <hanlonr at cox.net>
• Date: Wed, 9 Feb 2011 02:12:33 -0500 (EST)

```Show[ContourPlot[(\[Alpha]h1 xh-xh^2)+(\[Alpha]h2 xf-xf^2),
{xh,0,10},{xf,0,10},Contours->250],
ContourPlot[xf-(\[Alpha]h1-xh)==0,{xh,0,10},{xf,0,10}]]

Bob Hanlon

---- kristoph <kristophs.post at web.de> wrote:

=============
Hi,

I would like to plot a contour plot of two different functions. One of
them is a line in the contour plot. The problem I have is that the
plot only shows the line and only ONE curve of the other function.
What I would like to have is a usual contour plot of the function and
the line of the other function. Below you find the code of the contour
plot:

\[Alpha]h1 = 16;
\[Alpha]h2 = 16;
ContourPlot[{(\[Alpha]h1 xh - xh^2) + (\[Alpha]h2 xf - xf^2),
xf - (\[Alpha]h1 - xh) == 0}, {xh, 0, 10}, {xf, 0, 10},
Contours -> 250]

Here is the contour plot of the first function only. It would be great
to have this plot with only one line expressed by the function  xf - (\
[Alpha]h1 - xh) == 0.

ContourPlot[{(\[Alpha]h1 xh - xh^2) + (\[Alpha]h2 xf - xf^2)}, {xh, 0,
10}, {xf, 0, 10}, Contours -> 250]

Thanks for help,
Kris

```

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