View source for Phase plane

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The plane $\mathbf R^2$, which can be used for a geometrical interpretation of an [[autonomous system]] of two first-order ordinary differential equations (or one second-order ordinary differential equation). A phase plane is a special case of a [[phase space]].

See also [[Dynamical system]] (where this interpretation is called kinematic); [[Qualitative theory of differential equations]]; [[Poincaré–Bendixson theory]].

====References====
* {{Ref|a1}} O. Hajek, "Dynamical systems in the plane", Acad. Press (1968)