MathReader program from Wolfram Research in order to be able to view the files!

Files marked with ^{*} need the

Chapter and section numbers refer to the book:

Preliminary Edition. PWS, Boston.

- 1.2 Solving and graphing first-order equations (1.1MB).
- 1.3 Slope fields (819KB).
- 1.4 Euler's Method (727KB).
- 1.6 Phaselines (192KB).
- 1.7 Bifurcation Diagrams (58KB).

- 2.5 Euler's Method for systems of differential equations (376KB).
- 2.6
^{*}Nullcline Plots (465KB).

- 3.2-3.5
^{*}Graphical analysis for linear systems (1.4MB) - 3.6 Movie: The Harmonic Oscillator (evaluated notebook) (5090KB).
- 3.6
^{*}Movie: The Harmonic Oscillator (unevaluated notebook) (5KB).

- 4.1
^{*}Equilibria and Linearization (332KB)

- 5.2 The undamped forced oscillator: interference and resonance (1.8MB)
- 5.2 The damped forced oscillator: gain and phaselag (435KB)

- Gronwall's Theorem (37KB)
- The Volterra-Lotka DEQ (3D) (1.3MB)
- Movie: Competition between two species (7.5MB)
- Flow of a DEQ (Animation) (1.7MB)
- The Simple Pendulum and its Linearization (758KB)
- Bifurcation - The glider example (98KB)
- O. Perron's Example (126KB)
- Mathieu's Equation (1.6MB)
- Mathieu's Equation - The "trivial" case (6KB)
- Lyapunov's Direct Method (394KB)

Comments and suggestions to: helmut@math.utep.edu.

Last edit: January, 1998.