This is both a question about the function used to plot AND how to plot the function (I'm interested in keeping the contour/level lines the same):(adsbygoogle = window.adsbygoogle || []).push({});

This looks like a simple f(x,y) = 1/(xy) function. But how would I get Maple/Matlab to plot the contours as shown?

http://science.nasa.gov/headlines/y2005/images/gpb/vortex1_crop.jpg [Broken] one I have no idea. Any idea how its plot can be generated?

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# What function plots this?

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