References
[BCB] Robert L. Borrelli, Courtney Coleman, and William E. Boyce, Differential
Equations
Laboratory Workbook, Wiley, New York, 1992.
[HW] J. Hubbard and B. West, Differential Equations, A Dynamical Systems
Approach,
Part I, Texts in Applied Mathematics Vol 5, Springer Verlag, 1991.
[SW1] Dan Schwalbe and Stan Wagon, Nullclines and equilibria, fish and
balloons,
Mathematica in Education and Research 4:4 (1995).
[SW2] Dan Schwalbe and Stan Wagon, VisualDSolve: New Frontiers in the
Visualization of
Differential Equations, Springer/TELOS, 1996, forthcoming.
Up to New Visualization Ideas for Differential Equations