Support (mathematics)
Part of the domain of a mathematical function where the function takes non-zero values / From Wikipedia, the free encyclopedia
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In mathematics, the support of a real-valued function is the subset of the function domain containing the elements which are not mapped to zero. If the domain of is a topological space, then the support of is instead defined as the smallest closed set containing all points not mapped to zero. This concept is used very widely in mathematical analysis.
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For other uses in mathematics, see Support § Mathematics.