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  2. List of open-source software for mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source...

    This is a list of open-source software to be used for high-order mathematical calculations. This software has played an important role in the field of mathematics. [1] Open-source software in mathematics has become pivotal in education because of the high cost of textbooks. [2]

  3. Pairing - Wikipedia

    en.wikipedia.org/wiki/Pairing

    A pairing is called perfect if the above map is an isomorphism of R-modules and the other evaluation map ′: ⁡ (,) is an isomorphism also. In nice cases, it suffices that just one of these be an isomorphism, e.g. when R is a field, M,N are finite dimensional vector spaces and L=R .

  4. Pairing heap - Wikipedia

    en.wikipedia.org/wiki/Pairing_heap

    A pairing heap is a type of heap data structure with relatively simple implementation and excellent practical amortized performance, introduced by Michael Fredman, Robert Sedgewick, Daniel Sleator, and Robert Tarjan in 1986. [1] Pairing heaps are heap-ordered multiway tree structures, and can be considered simplified Fibonacci heaps.

  5. List of computer algebra systems - Wikipedia

    en.wikipedia.org/wiki/List_of_computer_algebra...

    The following tables provide a comparison of computer algebra systems (CAS). [1] [2] [3] A CAS is a package comprising a set of algorithms for performing symbolic manipulations on algebraic objects, a language to implement them, and an environment in which to use the language.

  6. Bilinear form - Wikipedia

    en.wikipedia.org/wiki/Bilinear_form

    When this occurs, B is said to be a perfect pairing. In finite dimensions, this is equivalent to the pairing being nondegenerate (the spaces necessarily having the same dimensions). For modules (instead of vector spaces), just as how a nondegenerate form is weaker than a unimodular form, a nondegenerate pairing is a weaker notion than a perfect ...

  7. Hotels.com - Wikipedia

    en.wikipedia.org/wiki/Hotels.com

    Hotels.com was established in 1991 by David Litman and Robert Diener as the Hotel Reservations Network (HRN), providing hotel booking via a toll-free phone number in the United States. [2] In 2001, the company was acquired by USA Networks Inc (USAI) which also acquired a controlling interest in Expedia, an online travel booking company.

  8. Axiom of pairing - Wikipedia

    en.wikipedia.org/wiki/Axiom_of_pairing

    The case n = 2 is the axiom of pairing with A = A 1 and B = A 2. The cases n > 2 can be proved using the axiom of pairing and the axiom of union multiple times. For example, to prove the case n = 3, use the axiom of pairing three times, to produce the pair {A 1,A 2}, the singleton {A 3}, and then the pair {{A 1,A 2},{A 3}}.

  9. Help:Displaying a formula - Wikipedia

    en.wikipedia.org/wiki/Help:Displaying_a_formula

    The code for the math example reads: <math display= "inline" > \sum_{i=0}^\infty 2^{-i} </math> The quotation marks around inline are optional and display=inline is also valid. [2] Technically, the command \textstyle will be added to the user input before the TeX command is passed to the renderer. The result will be displayed without further ...