Bow

$\begin{figure}\begin{center}\BoxedEPSF{Bow.epsf scaled 700}\end{center}\end{figure}$

$\begin{displaymath} x^4=x^2y-y^3. \end{displaymath}$

References

Cundy, H. and Rollett, A. Mathematical Models, 3rd ed. Stradbroke, England: Tarquin Pub., p. 72, 1989.