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Line 4: }} '''Logarithmic decrement''', δ <math> \delta </math>, is used to find the [[damping ratio]] of an underdamped system in the time ___domain. The logarithmic decrement is the [[natural logarithm\|natural log]] of the ratio of the amplitudes of any two successive peaks: : <math> \delta = \frac{1}{n} \ln \frac{x(t)}{x(t+nT)}, </math>

Logarithmic decrement: Difference between revisions