Difference between revisions of "Reciprocal"
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Revision as of 09:22, 11 August 2006
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The reciprocal of a non-zero number 
(usually a real number or rational number, but also a complex number or any non-zero element of a field) is its multiplicative inverse. The reciprocal is usually denoted 
or 
.
and are multiplicative inverses of each other if and only if 
.
