oops, here's the attachment (contour_plot function)



Sorry, I forgot to attach the file before. Here it is for real.

Robert

---------- Forwarded message ----------
From: Robert Dodier <robert.dodier at gmail.com>
Date: Jan 1, 2007 10:41 AM
Subject: contour_plot function
To: Maxima list mailing <maxima at math.utexas.edu>


Hello, to the best of my knowledge, there is not a function
to make contour plots in Maxima. I've attached an attempt.
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