A Fixed Point for which the Stability Matrix has Eigenvalues , also called a Saddle Point.

**References**

Tabor, M. ``Classification of Fixed Points.'' §1.4.b in
*Chaos and Integrability in Nonlinear Dynamics: An Introduction.* New York: Wiley, pp. 22-25,
1989.

© 1996-9

1999-05-25