Split-complex number: Difference between revisions

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Line 1: {{Short description\|~~The reals~~Reals with an extra square root of +1 adjoined}} {{redirect\|Double number\|the computer number format\|double-precision floating-point format}} Line 11: x + yj &\mapsto (x - y, x + y) \end{align}</math> is an [[quadratic space#isometry\|isometry]] of [[Quadratic_form#Quadratic_space\|quadratic spaces]]. Split-complex numbers have many other names; see ''{{section link\|\|Synonyms}}'' below. See the article ''[[Motor variable]]'' for functions of a split-complex number.