The phase plane is the two-dimensional state space of an autonomous planar system. Its oriented trajectories, equilibria, nullclines, and invariant sets display the system's qualitative dynamics.
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A phase plane is a graphical representation used in the study of dynamical systems, particularly in the field of mathematics and physics. It allows one to visualize the trajectories of a system in a state space defined by its variables, typically with one variable plotted on each axis. Here are the key aspects: 1. **State Space**: In a dynamical system, the state can often be described by a set of variables.