IEVref: 102-01-24 ID: Language: en Status: Standard Term: inverse, noun Synonym1: reciprocal, noun Synonym2: Synonym3: Symbol: Definition: for any element a of a set in which a multiplication with a neutral element u is defined, the unique element ${a}^{-1}$ of the set, if it exists, such that $a\cdot {a}^{-1}={a}^{-1}\cdot a=u$Note 1 to entry: In English, the term "reciprocal" is preferred for numbers. Note 2 to entry: The inverse of element a is denoted by ${a}^{-1}$. For a non-zero number, or for a quantity or unit, the inverse may also be denoted by $1/a$ or $\frac{1}{a}$. Publication date: 2008-08 Source: Replaces: Internal notes: 2017-02-20: Editorial revisions in accordance with the information provided in C00019 (IEV 102) - evaluation. JGO CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: