英和和英

出典:『Wikipedia』 (2011/03/08 08:57 UTC 版)

英語による解説

引用

Quantity calculus is the formal method for describing the mathematical relations between abstract physical quantities. Despite the name, it is more analogous to a system of algebra than calculus in the mathematical sense of the term. Measurements are expressed as products of a numeric value with a unit symbol, e.g. "12.7 m". Unlike algebra, the unit symbol represents an actual quantity such as a meter, not an algebraic variable.