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    Examples of vector spaces - Wikipedia

    • One variable The set of polynomials with coefficients in F is a vector space over F, denoted F[x]. Vector addition and scalar multiplication are defined in the obvious manner. If the degree of the polynomials is unrestricted then the dimension of F[x] is countably infinite. If instead one restricts to polynomials with degree less than or equal to n, then we have a vector … 展开

    Overview

    This page lists some examples of vector spaces. See vector space for the definitions of terms used on this page. … 展开

    Trivial or zero vector space

    The simplest example of a vector space is the trivial one: {0}, which contains only the zero vector (see the third axiom in the Vector space article). Both vector addition and scalar multiplication are trivial. A basis for this vector sp… 展开

    Field

    The next simplest example is the field F itself. Vector addition is just field addition, and scalar multiplication is just field multiplication. This property can be used to prove that a field is a vector space. Any non-zero elemen… 展开

    Infinite coordinate space

    Let F denote the space of infinite sequences of elements from F such that only finitely many elements are nonzero. That is, if we write an element of F as
    then only a finite number of the xi are nonzero (i.e., th… 展开

    Product of vector spaces

    Starting from n vector spaces, or a countably infinite collection of them, each with the same field, we can define the product space like above. 展开

    Matrices

    Let F denote the set of m×n matrices with entries in F. Then F is a vector space over F. Vector addition is just matrix addition and scalar multiplication is defined in the obvious way (by multiplying each entry by the same scalar)… 展开

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