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Kepler's Folium

\begin{figure}\begin{center}\BoxedEPSF{KeplersFolium.epsf}\end{center}\end{figure}

The curve with implicit equation

\begin{displaymath}[(x-b)^2+y^2][x(x-b)+y^2]-4a(x-b)y^2.
\end{displaymath}


References

Gray, A. Modern Differential Geometry of Curves and Surfaces. Boca Raton, FL: CRC Press, pp. 71-72, 1993.




© 1996-9 Eric W. Weisstein
1999-05-26