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  2. Associative property - Wikipedia

    en.wikipedia.org/wiki/Associative_property

    A binary operation ∗ on the set S is associative when this diagram commutes.That is, when the two paths from S×S×S to S compose to the same function from S×S×S to S. ...

  3. Associative algebra - Wikipedia

    en.wikipedia.org/wiki/Associative_algebra

    In mathematics, an associative algebra A over a commutative ring (often a field) K is a ring A together with a ring homomorphism from K into the center of A.This is thus an algebraic structure with an addition, a multiplication, and a scalar multiplication (the multiplication by the image of the ring homomorphism of an element of K).

  4. Computational complexity of mathematical operations - Wikipedia

    en.wikipedia.org/wiki/Computational_complexity...

    Graphs of functions commonly used in the analysis of algorithms, showing the number of operations versus input size for each function. The following tables list the computational complexity of various algorithms for common mathematical operations.

  5. Peirce decomposition - Wikipedia

    en.wikipedia.org/wiki/Peirce_decomposition

    In ring theory, a branch of mathematics, a Peirce decomposition / ˈ p ɜːr s / is a decomposition of an algebra as a sum of eigenspaces of commuting idempotent elements.The Peirce decomposition for associative algebras was introduced by Benjamin Peirce (1870, proposition 41, page 13).

  6. Complex multiplication - Wikipedia

    en.wikipedia.org/wiki/Complex_multiplication

    In mathematics, complex multiplication (CM) is the theory of elliptic curves E that have an endomorphism ring larger than the integers. [1] Put another way, it contains the theory of elliptic functions with extra symmetries, such as are visible when the period lattice is the Gaussian integer lattice or Eisenstein integer lattice.

  7. Associative array - Wikipedia

    en.wikipedia.org/wiki/Associative_array

    In computer science, an associative array, map, symbol table, or dictionary is an abstract data type that stores a collection of (key, value) pairs, such that each possible key appears at most once in the collection.

  8. Multiply–accumulate operation - Wikipedia

    en.wikipedia.org/wiki/Multiply–accumulate...

    In computing, especially digital signal processing, the multiply–accumulate (MAC) or multiply-add (MAD) operation is a common step that computes the product of two numbers and adds that product to an accumulator.

  9. Cross-multiplication - Wikipedia

    en.wikipedia.org/wiki/Cross-multiplication

    In mathematics, specifically in elementary arithmetic and elementary algebra, given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.