1. Quadratic formIn mathematics, a quadratic form is a homogeneous polynomial of degree two in a number of variables. For example, is a quadratic form in the variables x and y. Quadratic forms occupy a central place in various branches of mathematics, including number theory, linear algebra, group theory, differential geometry, differential topology, and Lie theory.
Read “Quadratic form” on English Wikipedia
Read “二次形式” on Japanese Wikipedia
Read “Quadratic form” on DBpedia
Read “Quadratic form” on English Wikipedia
Read “二次形式” on Japanese Wikipedia
Read “Quadratic form” on DBpedia
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