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Angular frequency

In physics, **angular frequency** ω (also referred to by the terms **angular speed**, **radial frequency**, **circular frequency**, **orbital frequency**, **radian frequency**, and **pulsatance**) is a scalar measure of rotation rate. It refers to the angular displacement per unit time (e.g., in rotation) or the rate of change of the phase of a sinusoidal waveform (e.g., in oscillations and waves), or as the rate of change of the argument of the sine function.

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