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  2. Limit inferior and limit superior - Wikipedia

    en.wikipedia.org/wiki/Limit_inferior_and_limit...

    The limit inferior of a sequence (xn) is defined by or Similarly, the limit superior of (xn) is defined by or Alternatively, the notations and are sometimes used. The limits superior and inferior can equivalently be defined using the concept of subsequential limits of the sequence . [1] An element of the extended real numbers is a subsequential limit of if there exists a strictly increasing ...

  3. Limit of a function - Wikipedia

    en.wikipedia.org/wiki/Limit_of_a_function

    The initial informal statement can now be explicated: The limit of a function f(x) as x approaches p is a number L with the following property: given any target distance from L, there is a distance from p within which the values of f(x) remain within the target distance.

  4. Limit (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Limit_(mathematics)

    In mathematics, a limit is the value that a function (or sequence) approaches as the argument (or index) approaches some value. [1] Limits of functions are essential to calculus and mathematical analysis, and are used to define continuity, derivatives, and integrals. The concept of a limit of a sequence is further generalized to the concept of a limit of a topological net, and is closely ...

  5. Limit of a sequence - Wikipedia

    en.wikipedia.org/wiki/Limit_of_a_sequence

    The sequence given by the perimeters of regular n -sided polygons that circumscribe the unit circle has a limit equal to the perimeter of the circle, i.e. . The corresponding sequence for inscribed polygons has the same limit.

  6. Interchange of limiting operations - Wikipedia

    en.wikipedia.org/wiki/Interchange_of_limiting...

    In mathematics, the study of interchange of limiting operations is one of the major concerns of mathematical analysis, in that two given limiting operations, say L and M, cannot be assumed to give the same result when applied in either order. One of the historical sources for this theory is the study of trigonometric series. [1]

  7. One-sided limit - Wikipedia

    en.wikipedia.org/wiki/One-sided_limit

    The one-sided limit to a point corresponds to the general definition of limit, with the domain of the function restricted to one side, by either allowing that the function domain is a subset of the topological space, or by considering a one-sided subspace, including [1] [verification needed] Alternatively, one may consider the domain with a half-open interval topology. [citation needed]

  8. Computation in the limit - Wikipedia

    en.wikipedia.org/wiki/Computation_in_the_limit

    A total function is limit computable if there is a total computable function such that r ( x ) = lim s → ∞ r ^ ( x , s ) {\displaystyle \displaystyle r (x)=\lim _ {s\to \infty } {\hat {r}} (x,s)} The total function is limit computable in D if there is a total function computable in D also satisfying A set of natural numbers is defined to be computable in the limit if and only if its ...

  9. Set-theoretic limit - Wikipedia

    en.wikipedia.org/wiki/Set-theoretic_limit

    Set limits, particularly the limit infimum and the limit supremum, are essential for probability and measure theory. Such limits are used to calculate (or prove) the probabilities and measures of other, more purposeful, sets. For the following, is a probability space, which means is a σ-algebra of subsets of and is a probability measure defined on that σ-algebra. Sets in the σ-algebra are ...