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  2. Overshoot (signal) - Wikipedia

    en.wikipedia.org/wiki/Overshoot_(signal)

    The overshoot and undershoot can be understood in this way: kernels are generally normalized to have integral 1, so they send constant functions to constant functions – otherwise they have gain. The value of a convolution at a point is a linear combination of the input signal, with coefficients (weights) the values of the kernel.

  3. Damping - Wikipedia

    en.wikipedia.org/wiki/Damping

    In control theory, overshoot refers to an output exceeding its final, steady-state value. [13] For a step input, the percentage overshoot (PO) is the maximum value minus the step value divided by the step value. In the case of the unit step, the overshoot is just the maximum value of the step response minus one.

  4. Odlyzko–Schönhage algorithm - Wikipedia

    en.wikipedia.org/wiki/Odlyzko–Schönhage_algorithm

    Gourdon (2004), The 10 13 first zeros of the Riemann Zeta function, and zeros computation at very large height Odlyzko, A. (1992), The 10 20 -th zero of the Riemann zeta function and 175 million of its neighbors This unpublished book describes the implementation of the algorithm and discusses the results in detail.

  5. Step response - Wikipedia

    en.wikipedia.org/wiki/Step_response

    where the τ 1 ≫ τ 2 is applicable because of the overshoot control condition, which makes τ 1 = αβA OL τ 2. Often the settling time condition is referred to by saying the settling period is inversely proportional to the unity gain bandwidth, because 1/(2 π τ 2 ) is close to this bandwidth for an amplifier with typical dominant pole ...

  6. Logarithmic decrement - Wikipedia

    en.wikipedia.org/wiki/Logarithmic_decrement

    The logarithmic decrement can be obtained e.g. as ln(x 1 /x 3).Logarithmic decrement, , is used to find the damping ratio of an underdamped system in the time domain.. The method of logarithmic decrement becomes less and less precise as the damping ratio increases past about 0.5; it does not apply at all for a damping ratio greater than 1.0 because the system is overdamped.

  7. Settling time - Wikipedia

    en.wikipedia.org/wiki/Settling_time

    Tay, Mareels and Moore (1998) defined settling time as "the time required for the response curve to reach and stay within a range of certain percentage (usually 5% or 2%) of the final value." [ 2 ] Mathematical detail

  8. Particular values of the Riemann zeta function - Wikipedia

    en.wikipedia.org/wiki/Particular_values_of_the...

    It is known that ζ(3) is irrational (Apéry's theorem) and that infinitely many of the numbers ζ(2n + 1) : n ∈ , are irrational. [1] There are also results on the irrationality of values of the Riemann zeta function at the elements of certain subsets of the positive odd integers; for example, at least one of ζ (5), ζ (7), ζ (9), or ζ ...

  9. Riemann–Siegel formula - Wikipedia

    en.wikipedia.org/wiki/Riemann–Siegel_formula

    where the contour of integration is a line of slope −1 passing between 0 and 1 (Edwards 1974, 7.9). He used this to give the following integral formula for the zeta function: