Jisho

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Noun
1. coefficient; factor; proportional constantMathematics
Wikipedia definition
2. CoefficientIn mathematics, a coefficient is a multiplicative factor in some term of an expression (or of a series); it is usually a number, but in any case does not involve any variables of the expression. For instance in the first three terms respectively have the coefficients 7, −3, and 1.5 (in the third term the variables are hidden, so the coefficient is the term itself; it is called the constant term or constant coefficient of this expression).
Read “Coefficient” on English Wikipedia
Read “係数” on Japanese Wikipedia
Read “Coefficient” on DBpedia

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