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  2. Invertible matrix - Wikipedia

    en.wikipedia.org/wiki/Invertible_matrix

    In linear algebra, an invertible matrix is a square matrix which has an inverse. In other words, if some other matrix is multiplied by the invertible matrix, the result can be multiplied by an inverse to undo the operation. An invertible matrix multiplied by its inverse yields the identity matrix. Invertible matrices are the same size as their ...

  3. Casio graphic calculators - Wikipedia

    en.wikipedia.org/wiki/Casio_graphic_calculators

    These variables are also shared by other functions of the calculator, for instance, drawing a graph will overwrite the X and Y values. MicroPython was added to Casio graphing from the PRIZM fx-CG50 and the fx-9860 GIII series. The latest Classwiz CG Series of graphing calculators instead use the Python programming language. [12]

  4. Graphing calculator - Wikipedia

    en.wikipedia.org/wiki/Graphing_calculator

    A graphing calculator (also graphics calculator or graphic display calculator) is a handheld computer that is capable of plotting graphs, ... the list, matrix, and ...

  5. TI-30 - Wikipedia

    en.wikipedia.org/wiki/TI-30

    The original TI-30. The TI-30 is a scientific calculator manufactured by Texas Instruments, the first model of which was introduced in 1976.While the original TI-30 was discontinued in 1983 after several design revisions, TI maintains the TI-30 designation as a branding for its low and mid-range scientific calculators.

  6. TI-36 - Wikipedia

    en.wikipedia.org/wiki/TI-36

    This model incorporates the multi-line dot matrix display already used in the TI-30 and 34 MultiView series calculators. This display allows the calculator to perform numeric derivatives and integrals in a way similar to the much more advanced TI-83 series graphing calculators. Maximum expression length is reduced to 80 characters.

  7. Desmos - Wikipedia

    en.wikipedia.org/wiki/Desmos

    Some 50 employees joined Amplify. Desmos Studio was spun off as a separate public benefit corporation focused on building calculator products and other math tools. [7] In May 2023, Desmos released a beta for a remade Geometry Tool. In it, geometrical shapes can be made, as well as expressions from the normal graphing calculator, with extra ...

  8. Unimodular matrix - Wikipedia

    en.wikipedia.org/wiki/Unimodular_matrix

    1. The unoriented incidence matrix of a bipartite graph, which is the coefficient matrix for bipartite matching, is totally unimodular (TU). (The unoriented incidence matrix of a non-bipartite graph is not TU.) More generally, in the appendix to a paper by Heller and Tompkins, [2] A.J. Hoffman and D. Gale prove the following.

  9. Moore–Penrose inverse - Wikipedia

    en.wikipedia.org/wiki/Moore–Penrose_inverse

    In mathematics, and in particular linear algebra, the Moore–Penrose inverse ⁠ + ⁠ of a matrix ⁠ ⁠, often called the pseudoinverse, is the most widely known generalization of the inverse matrix. [1] It was independently described by E. H. Moore in 1920, [2] Arne Bjerhammar in 1951, [3] and Roger Penrose in 1955. [4]

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