むじげんすう
無次元数
1. dimensionless numberMathematics, Physics
2. Dimensionless quantityIn dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a "pure" number, and as such always has a dimension of 1. Dimensionless quantities are widely used in mathematics, physics, engineering, economics, and in everyday life (such as in counting). Numerous well-known quantities, such as π, e, and φ, are dimensionless.
Read “Dimensionless quantity” on English Wikipedia
Read “無次元数” on Japanese Wikipedia
Read “Dimensionless quantity” on DBpedia
Read “Dimensionless quantity” on English Wikipedia
Read “無次元数” on Japanese Wikipedia
Read “Dimensionless quantity” on DBpedia
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