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  2. Ramanujan summation - Wikipedia

    en.wikipedia.org/wiki/Ramanujan_summation

    Ramanujan summation is a technique invented by the mathematician Srinivasa Ramanujan for assigning a value to divergent infinite series.Although the Ramanujan summation of a divergent series is not a sum in the traditional sense, it has properties that make it mathematically useful in the study of divergent infinite series, for which conventional summation is undefined.

  3. 1 + 2 + 3 + 4 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    The y-intercept of the parabola is ⁠− + 1 / 12 ⁠. [1] The method of regularization using a cutoff function can "smooth" the series to arrive at ⁠− + 1 / 12 ⁠. Smoothing is a conceptual bridge between zeta function regularization, with its reliance on complex analysis, and Ramanujan summation, with its shortcut to the Euler ...

  4. Ramanujan's sum - Wikipedia

    en.wikipedia.org/wiki/Ramanujan's_sum

    where the a k ∈ C, is called a Ramanujan expansion [12] of f (n). Ramanujan found expansions of some of the well-known functions of number theory. All of these results are proved in an "elementary" manner (i.e. only using formal manipulations of series and the simplest results about convergence).

  5. Srinivasa Ramanujan - Wikipedia

    en.wikipedia.org/wiki/Srinivasa_Ramanujan

    Srinivasa Ramanujan Aiyangar [a] (22 December 1887 – 26 April 1920) was an Indian mathematician.Often regarded as one of the greatest mathematicians of all time, though he had almost no formal training in pure mathematics, he made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, including solutions to mathematical problems then ...

  6. Divergent series - Wikipedia

    en.wikipedia.org/wiki/Divergent_series

    Ramanujan summation is a method of assigning a value to divergent series used by Ramanujan and based on the Euler–Maclaurin summation formula. The Ramanujan sum of a series f(0) + f(1) + ... depends not only on the values of f at integers, but also on values of the function f at non-integral points, so it is not really a summation method in ...

  7. 11 Retro Things That Gen Z Is Bringing Back - AOL

    www.aol.com/11-retro-things-gen-z-170000377.html

    Thrift Store Shopping and Sustainability. For Gen Z, thrifting is life. The last time shopping for used, vintage clothes and items was this hot was in the 1990’s. And think back to the 80s, when ...

  8. Zeta function regularization - Wikipedia

    en.wikipedia.org/wiki/Zeta_function_regularization

    There are several different summation methods called zeta function regularization for defining the sum of a possibly divergent series a 1 + a 2 + ..... One method is to define its zeta regularized sum to be ζ A (−1) if this is defined, where the zeta function is defined for large Re(s) by

  9. This Is How Long You Need To Work Out To Actually Lower Your ...

    www.aol.com/long-actually-lower-dementia-risk...

    February 24, 2025 at 12:40 PM. How Long You Shoud Work Out To Lower Dementia Risk Ezra Bailey ... I tried 8 sour cream brands — this one was so much better than all the others. Food.