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  2. Limit (mathematics) - Wikipedia

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

    As x becomes extremely large, the value of f(x) approaches 2, and the value of f(x) can be made as close to 2 as one could wish—by making x sufficiently large. So in this case, the limit of f ( x ) as x approaches infinity is 2 , or in mathematical notation, lim x → ∞ 2 x − 1 x = 2. {\displaystyle \lim _{x\to \infty }{\frac {2x-1}{x}}=2.}

  3. Industrial University of Ho Chi Minh City - Wikipedia

    en.wikipedia.org/wiki/Industrial_University_of...

    The Industrial University of Ho Chi Minh City (IUH), formerly known as Ho Chi Minh University of Industry (esquire: HUI) (Vietnamese: Trường Đại học Công nghiệp Thành phố Hồ Chí Minh) [1] (esquire: ĐHCN TP. HCM), is a university in Go Vap District, Ho Chi Minh City, Vietnam. It is one of technical universities in the city.

  4. Limit of a function - Wikipedia

    en.wikipedia.org/wiki/Limit_of_a_function

    [2] [3] In his 1821 book Cours d'analyse , Augustin-Louis Cauchy discussed variable quantities, infinitesimals and limits, and defined continuity of y = f ( x ) {\displaystyle y=f(x)} by saying that an infinitesimal change in x necessarily produces an infinitesimal change in y , while Grabiner claims that he used a rigorous epsilon-delta ...

  5. Limit inferior and limit superior - Wikipedia

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

    In mathematical analysis, limit superior and limit inferior are important tools for studying sequences of real numbers.Since the supremum and infimum of an unbounded set of real numbers may not exist (the reals are not a complete lattice), it is convenient to consider sequences in the affinely extended real number system: we add the positive and negative infinities to the real line to give the ...

  6. Central limit theorem - Wikipedia

    en.wikipedia.org/wiki/Central_limit_theorem

    A non-degenerate random variable Z is α-stable for some 0 < α ≤ 2 if and only if there is an independent, identically distributed sequence of random variables X 1, X 2, X 3, ... and constants a n > 0, b n ∈ ℝ with a n (X 1 + ... + X n) − b n → Z.

  7. Basel problem - Wikipedia

    en.wikipedia.org/wiki/Basel_problem

    The Basel problem is a problem in mathematical analysis with relevance to number theory, concerning an infinite sum of inverse squares.It was first posed by Pietro Mengoli in 1650 and solved by Leonhard Euler in 1734, [1] and read on 5 December 1735 in The Saint Petersburg Academy of Sciences. [2]

  8. Natural density - Wikipedia

    en.wikipedia.org/wiki/Natural_density

    A subset A of positive integers has natural density α if the proportion of elements of A among all natural numbers from 1 to n converges to α as n tends to infinity.. More explicitly, if one defines for any natural number n the counting function a(n) as the number of elements of A less than or equal to n, then the natural density of A being α exactly means that [1]

  9. Speed limit - Wikipedia

    en.wikipedia.org/wiki/Speed_limit

    In 2020, previous results are confirmed for the year 2019: mean car speed was reduced between 2.9 and 3.9 km/h, while mean speed of trucks was reduced by 2 km/h without speed limit change. By the same time, fatalities were reduce by 125 in the second semester 2018, by 84 in the first semester 2019, and 127 for the second semester 2019. [ 127 ]

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