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Topic: plot of function of two variables
Replies: 4   Last Post: Oct 14, 2012 12:23 AM

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Murray Eisenberg

Posts: 2,105
Registered: 12/6/04
Re: plot a function of two variables
Posted: Oct 14, 2012 12:21 AM
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On Oct 13, 2012, at 1:03 AM, Miguel Aragon <> wrote:

> I have a question about how to plot a function of two variable of the form
> (x-a)^2 + (y-b)^2 = r^2 with Mathematica v 7.0? Is it possible?

Use ContourPlot. For example:

ContourPlot[(x - 1)^2 + (y + 1)^ 2== 3^2, {x, -4, 5}, {y, -5, 4},
ContourStyle -> Thick, Axes -> True, Frame -> False, AxesLabel -> "x", "y"}]

Notice that with this form of ContourPlot, where the first argument is a function, you do not specify the Contours option.

Murray Eisenberg
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 413 549-1020 (H)
University of Massachusetts 413 545-2838 (W)
710 North Pleasant Street fax 413 545-1801
Amherst, MA 01003-9305

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