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List of forum topicsenAny way to get gradient lines as well as contour lines?
http://mathforum.org/kb/thread.jspa?messageID=8244189&tstart=0#8244189
descent, on plots of functions of x and y, f(x, y). The contour lines can]]>Feb 3, 2013 2:52:28 AMFeb 3, 2013 2:52:28 AMcy56@comcast.net0