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  2. Summation - Wikipedia

    en.wikipedia.org/wiki/Summation

    The summation of an explicit sequence is denoted as a succession of additions. For example, summation of [1, 2, 4, 2] is denoted 1 + 2 + 4 + 2, and results in 9, that is, 1 + 2 + 4 + 2 = 9. Because addition is associative and commutative, there is no need for parentheses, and the result is the same irrespective of the order of the summands ...

  3. Abeka - Wikipedia

    en.wikipedia.org/wiki/Abeka

    Abeka Book, LLC, known as A Beka Book until 2017, is an American publisher affiliated with Pensacola Christian College (PCC) that produces K-12 curriculum materials that are used by Christian schools and homeschooling families around the world. [3] [4] [5] It is named after Rebekah Horton, wife of college president Arlin Horton.

  4. Addition principle - Wikipedia

    en.wikipedia.org/wiki/Addition_principle

    5+0=5 illustrated with collections of dots. In combinatorics, the addition principle [1] [2] or rule of sum [3] [4] is a basic counting principle.Stated simply, it is the intuitive idea that if we have A number of ways of doing something and B number of ways of doing another thing and we can not do both at the same time, then there are + ways to choose one of the actions.

  5. Summation by parts - Wikipedia

    en.wikipedia.org/wiki/Summation_by_parts

    In mathematics, summation by parts transforms the summation of products of sequences into other summations, often simplifying the computation or (especially) estimation of certain types of sums. It is also called Abel's lemma or Abel transformation , named after Niels Henrik Abel who introduced it in 1826.

  6. Sumset - Wikipedia

    en.wikipedia.org/wiki/Sumset

    In additive combinatorics, the sumset (also called the Minkowski sum) of two subsets and of an abelian group (written additively) is defined to be the set of all sums of an element from with an element from .

  7. Arithmetic progression - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_progression

    Proof without words of the arithmetic progression formulas using a rotated copy of the blocks.. An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference from any succeeding term to its preceding term remains constant throughout the sequence.

  8. Khan Academy - Wikipedia

    en.wikipedia.org/wiki/Khan_Academy

    Khanmigo is a chatbot powered by GPT-4 technology, designed to assist users with mathematics, science, humanities, and coding inquiries, as well as aiding in learning these subjects. It incorporates the large language model of OpenAI. Khan Academy introduced Khanmigo on March 14, 2023. [35] [36] Users can have access [37] for $4 per month ...

  9. Geometric series - Wikipedia

    en.wikipedia.org/wiki/Geometric_series

    In mathematics, a geometric series is a series summing the terms of an infinite geometric sequence, in which the ratio of consecutive terms is constant.For example, the series + + + is a geometric series with common ratio ⁠ ⁠, which converges to the sum of ⁠ ⁠.