Functions can be dependent upon one variable or more than one variable. Similarly, DDS’s can be dependent on multiple variables. An example of a two-dimensional discrete dynamical system is a model for two populations that are interdependent. Imagine a predator-prey model where interactions between the two populations benefit the predators but hurt the prey’s population count.

1. Introduction
2. Classification of Fixed Points
3. Non-Linear 2D DDS
   1. Linearization
   2. Partial Derivatives
   3. Eigenvalue Analysis
      • Eigenvalue Visual Aid (CLICK to enlarge)