Examples
- In mechanical systems, the position coordinates and velocities of mechanical parts are typical state variables; knowing these, it is possible to determine the future state of the objects in the system.
- In a thermodynamic system, properties such as temperature, pressure, volume, internal energy, enthalpy, and entropy are state variables.
- In electronic circuits, the voltages of the nodes and the currents through components in the circuit are usually the state variables.
- In ecosystem models, population sizes (or concentrations) of plants, animals and resources (nutrients, organic material) are typical state variables.
Read more about this topic: State Variable
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