1.92 | quantity calculus | ||

algebra of quantities | |||

Rules and operations of algebra applied to unitary quantities. | |||

Note 1: | In quantity calculus symbols are consistently used to represent quantities as a product of a numerical quantity value and a measurement unit, rather than their numerical values expressed in certain units. | ||

Note 2: | Algebraic relations between quantities, such as equations or functions, are independent of the choice of measurement units, and therefore preferred to expressions based on numerical values. | ||

Note 3: | VIM 1.21 defines quantity calculus as “set of mathematical rules and operations applied to quantities other than ordinal quantities” | ||

Source: ref. 6 p. 3. |

1.92 | quantity calculus | ||

algebra of quantities | |||

Rules and operations of algebra applied to unitary quantities. | |||

Note 1: | In quantity calculus symbols are consistently used to represent quantities as a product of a numerical quantity value and a measurement unit, rather than their numerical values expressed in certain units. | ||

Note 2: | Algebraic relations between quantities, such as equations or functions, are independent of the choice of measurement units, and therefore preferred to expressions based on numerical values. | ||

Note 3: | VIM 1.21 defines quantity calculus as “set of mathematical rules and operations applied to quantities other than ordinal quantities” | ||

Source: ref. 6 p. 3. |

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