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  2. Dirac delta function - Wikipedia

    en.wikipedia.org/wiki/Dirac_delta_function

    The impulse response can be computed to any desired degree of accuracy by choosing a suitable approximation for δ, and once it is known, it characterizes the system completely. See LTI system theory § Impulse response and convolution. The inverse Fourier transform of the tempered distribution f(ξ) = 1 is the delta function.

  3. Geometry Dash - Wikipedia

    en.wikipedia.org/wiki/Geometry_Dash

    Geometry Dash has also been listed by the reviewer Chris Morris on the website Common Sense Media as a child-friendly video game that parents could let their children play on, stating that the game was a 'good way to handle frustration' and that 'families can also talk about rhythm and the joy of dancing in time with music'. [16]

  4. Order flow trading - Wikipedia

    en.wikipedia.org/wiki/Order_flow_trading

    Order Flow traders can see both Limit orders and Market orders being placed, footprint charts show only executed market orders and therefore show the actual volume of buyers and sellers. [ 5 ] limit orders are price points where traders have ordered to buy or sell a stock, these orders will not get executed unless the price of the market hits ...

  5. Limit-preserving function (order theory) - Wikipedia

    en.wikipedia.org/wiki/Limit-preserving_function...

    The background for the definitions and terminology given below is to be found in category theory, where limits (and co-limits) in a more general sense are considered. The categorical concept of limit-preserving and limit-reflecting functors is in complete harmony with order theory, since orders can be considered as small categories defined as ...

  6. Asymptotic analysis - Wikipedia

    en.wikipedia.org/wiki/Asymptotic_analysis

    The same notation is also used for other ways of passing to a limit: e.g. x → 0, x ↓ 0, | x | → 0. The way of passing to the limit is often not stated explicitly, if it is clear from the context. Although the above definition is common in the literature, it is problematic if g(x) is zero infinitely often as x goes to the limiting value ...

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  8. Rate of convergence - Wikipedia

    en.wikipedia.org/wiki/Rate_of_convergence

    In asymptotic analysis in general, one sequence () that converges to a limit is said to asymptotically converge to with a faster order of convergence than another sequence () that converges to in a shared metric space with distance metric | |, such as the real numbers or complex numbers with the ordinary absolute difference metrics, if

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