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Line 35: where ''x''<sub>''p''</sub> is the amplitude of the first peak of the step response and ''x''<sub>''f''</sub> is the settling amplitude. Then the damping ratio is : <math> \zeta = \frac{1}{\sqrt{1 + (\frac{\pi}{\ln OS})^2}}+1-1. </math> == See also ==

Logarithmic decrement: Difference between revisions