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= Complex
{synonym}

An <ordered pair> of two <real numbers> with the complex addition and multiplication defined.

Forms both a:
* <division algebra> if thought of <\R^2> with complex multiplication as the bilinear map of the <algebra over a field>[algebra]
* <field (mathematics)>


Complex number

{disambiguate=mathematics}
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= Function
{synonym}

<Set (mathematics)> of <ordered pairs>. That's it! This is illustrated at: https://math.stackexchange.com/questions/1480651/is-fx-x-1-x-2-a-function/1481099#1481099


Function

Function (mathematics)

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<Sets> are unordered, but we can use them to create ordered objects, which are of fundamental importance. Notably, they are used in the definition of <functions>.


Ciro Santilli @cirosantilli 37

 Incoming links: Ordered pair