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  2. Basis (linear algebra) - Wikipedia

    en.wikipedia.org/wiki/Basis_(linear_algebra)

    A projective basis is + points in general position, in a projective space of dimension n. A convex basis of a polytope is the set of the vertices of its convex hull. A cone basis [5] consists of one point by edge of a polygonal cone. See also a Hilbert basis (linear programming).

  3. Basis function - Wikipedia

    en.wikipedia.org/wiki/Basis_function

    In mathematics, a basis function is an element of a particular basis for a function space.Every function in the function space can be represented as a linear combination of basis functions, just as every vector in a vector space can be represented as a linear combination of basis vectors.

  4. Base (topology) - Wikipedia

    en.wikipedia.org/wiki/Base_(topology)

    In mathematics, a base (or basis; pl.: bases) for the topology τ of a topological space (X, τ) is a family of open subsets of X such that every open set of the topology is equal to the union of some sub-family of .

  5. Standard basis - Wikipedia

    en.wikipedia.org/wiki/Standard_basis

    Every vector a in three dimensions is a linear combination of the standard basis vectors i, j and k.. In mathematics, the standard basis (also called natural basis or canonical basis) of a coordinate vector space (such as or ) is the set of vectors, each of whose components are all zero, except one that equals 1. [1]

  6. Orthogonal basis - Wikipedia

    en.wikipedia.org/wiki/Orthogonal_basis

    In mathematics, particularly linear algebra, an orthogonal basis for an inner product space is a basis for whose vectors are mutually orthogonal. If the vectors of an orthogonal basis are normalized , the resulting basis is an orthonormal basis .

  7. Canonical basis - Wikipedia

    en.wikipedia.org/wiki/Canonical_basis

    In mathematics, a canonical basis is a basis of an algebraic structure that is canonical in a sense that depends on the precise context: . In a coordinate space, and more generally in a free module, it refers to the standard basis defined by the Kronecker delta.

  8. Linear algebra - Wikipedia

    en.wikipedia.org/wiki/Linear_algebra

    An orthonormal basis is a basis where all basis vectors have length 1 and are orthogonal to each other. Given any finite-dimensional vector space, an orthonormal basis could be found by the Gram–Schmidt procedure. Orthonormal bases are particularly easy to deal with, since if v = a 1 v 1 + ⋯ + a n v n, then

  9. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Mathematics is a field of study that discovers and ... and—in case of abstraction from nature—some basic properties that are considered true starting points of ...