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This Java applet allows you to visualize certain maps from the Complex plane to itself. Eventually, we'd like to be able to visualize more general maps from the Cartesian plane to itself. We welcome feedback on this project.
Use the mouse pointer to move the small (red) square grid around. It represents a neighbourhood of a point in the domain. The twisted (blue) grid represents the image of the square grid.This Java applet was written by Keith Orpen and Djun M. Kim. You can FTP the Source code for this applet.