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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. Template:Sum 41 - Wikipedia

    en.wikipedia.org/wiki/Template:Sum_41

    This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible. To change this template's initial visibility, the |state= parameter may be used:

  4. Sum-free sequence - Wikipedia

    en.wikipedia.org/wiki/Sum-free_sequence

    Erdős (1962) showed that for every sum-free sequence there exists an unbounded sequence of numbers for which () = where is the golden ratio, and he exhibited a sum-free sequence for which, for all values of , () = (/), [1] subsequently improved to () = (/) by Deshouillers, Erdős and Melfi in 1999 [3] and to () = (/) by Luczak and Schoen in ...

  5. Sumset - Wikipedia

    en.wikipedia.org/wiki/Sumset

    (May 2024) (Learn how and when to remove this message) In additive combinatorics , the sumset (also called the Minkowski sum ) of two subsets A {\displaystyle A} and B {\displaystyle B} of an abelian group G {\displaystyle G} (written additively) is defined to be the set of all sums of an element from A {\displaystyle A} with an element from B ...

  6. Sum-free set - Wikipedia

    en.wikipedia.org/wiki/Sum-free_set

    For example, the set of odd numbers is a sum-free subset of the integers, and the set {N + 1, ..., 2N } forms a large sum-free subset of the set {1, ..., 2N }. Fermat's Last Theorem is the statement that, for a given integer n > 2, the set of all nonzero n th powers of the integers is a sum-free set.

  7. Log sum inequality - Wikipedia

    en.wikipedia.org/wiki/Log_sum_inequality

    Download as PDF; Printable version; ... The log sum inequality is used for proving theorems in information theory ... This page was last edited on 8 May 2024, ...