Page "Dual number" Paragraph 0
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In linear algebra, the dual numbers extend the real numbers by adjoining one new element ε with the property ε < sup > 2 </ sup > = 0 ( ε is nilpotent ).
The collection of dual numbers forms a particular two-dimensional commutative unital associative algebra over the real numbers.
The plane of all dual numbers is an " alternative complex plane " that complements the ordinary complex number plane C and the plane of split-complex numbers.
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