1. IntroductionPart One: Analytical Models2. Ordinary Differential and Difference Equations3. Partial Differential Equations4. Variational Principles5. Random SystemsPart Two: Numerical Models6. Finite Differences: Ordinary Differential Equations7. Finite Differences: Partial Differential Equations8. Finite Elements9. Cellular Automata and Lattice GasesPart Three: Observational Models10. Function Fitting11. Transforms12. Architectures13. Optimization and Search14. Clustering and Density Estimati...