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{{Refimprove|date=November 2009}
{{Refimprove|date=November 2009}
In [[physics]] and [[chemistry]], a '''degree of freedom''' is an independent physical [[parameter]] in the formal description of the state of a [[physical system]]. The set of all states of a system is known as the system's [[phase space]], and the degrees of freedom of the system are the [[dimension]]s of the phase space.
In [[physics]] and [[chemistry]], a '''degree of freedom''' is an independent physical [[parameter]] in the formal description of the state of a [[physical system]]. The set of all states of a system is known as the system's [[phase space]], and the degrees of freedom of the system are the [[dimension]]s of the phase space.