IEVref: 102-02-10 ID: Language: en Status: Standard Term: imaginary unit Synonym1: Synonym2: Synonym3: Symbol: ji Definition: complex number j represented by the pair of real numbers (0, 1) Note 1 to entry: The complex number represented by the pair (a, b) can also be represented by $a+jb$. Note 2 to entry: The imaginary unit j and its opposite −j are the two square roots of −1. Note 3 to entry: In electrotechnology, the symbol j is preferred to the symbol i, usual in mathematics and other fields. 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: