A curve studied by Eudoxus in relation to the classical problem of Cube Duplication. It is given by the polar
equation

and the parametric equations

with .

**References**

Lawrence, J. D. *A Catalog of Special Plane Curves.* New York: Dover, pp. 141-143, 1972.

MacTutor History of Mathematics Archive. ``Kampyle of Eudoxus.'' http://www-groups.dcs.st-and.ac.uk/~history/Curves/Kampyle.html.

© 1996-9

1999-05-26