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Mr. Fulano (talk | contribs) m Reverted edits by 147.197.250.34 (talk) to last version by Dicklyon |
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: <math> \omega_d = \frac{2\pi}{T} </math>
: <math> \omega_n = \frac{\omega_d}{\sqrt{1 - \zeta^2}} </math>
where ''T,'' the period of the waveform, is the time between two successive amplitude peaks of the underdamped system.
==Simplified variation==
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