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  2. Summation - Wikipedia

    en.wikipedia.org/wiki/Summation

    In mathematics, summation is the addition of a sequence of numbers, called addends or summands; the result is their sum or total.Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted "+" is defined.

  3. Cesàro summation - Wikipedia

    en.wikipedia.org/wiki/Cesàro_summation

    The value of this limit, should it exist, is the (C, α) sum of the integral. Analogously to the case of the sum of a series, if α = 0, the result is convergence of the improper integral. In the case α = 1, (C, 1) convergence is equivalent to the existence of the limit

  4. Kahan summation algorithm - Wikipedia

    en.wikipedia.org/wiki/Kahan_summation_algorithm

    The algorithm performs summation with two accumulators: sum holds the sum, and c accumulates the parts not assimilated into sum, to nudge the low-order part of sum the next time around. Thus the summation proceeds with "guard digits" in c , which is better than not having any, but is not as good as performing the calculations with double the ...

  5. Matrix addition - Wikipedia

    en.wikipedia.org/wiki/Matrix_addition

    The Kronecker sum is different from the direct sum, but is also denoted by ⊕. It is defined using the Kronecker product ⊗ and normal matrix addition. If A is n -by- n , B is m -by- m and I k {\displaystyle \mathbf {I} _{k}} denotes the k -by- k identity matrix then the Kronecker sum is defined by:

  6. Prefix sum - Wikipedia

    en.wikipedia.org/wiki/Prefix_sum

    Prefix sums are trivial to compute in sequential models of computation, by using the formula y i = y i − 1 + x i to compute each output value in sequence order. However, despite their ease of computation, prefix sums are a useful primitive in certain algorithms such as counting sort, [1] [2] and they form the basis of the scan higher-order function in functional programming languages.

  7. Google pulls McDonald's negative reviews over arrest in ...

    www.aol.com/news/google-pulls-mcdonalds-negative...

    By Kanishka Singh. WASHINGTON (Reuters) - Google on Monday removed derogatory reviews about McDonald's after the suspect in the killing of UnitedHealth executive Brian Thompson was arrested at its ...

  8. 8 jewelry trends that are in for 2025 and 3 that are out ...

    www.aol.com/8-jewelry-trends-2025-3-140301428.html

    1990s bling and multiple rings are some of the biggest 2025 jewelry trends. Justin Lambert/Getty Images. Business Insider spoke with professional stylists about 2025 jewelry trends.

  9. PayPal fixes outage that affected thousands worldwide - AOL

    www.aol.com/news/paypal-outage-affects-thousands...

    The company experienced a system issue that affected multiple products including account withdrawals, peer-to-peer payment service Venmo, online checkout and crypto. PayPal said the issue, which ...