Reciprocal: Difference between revisions
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{ | The '''reciprocal''' of a non-[[0|zero]] number <math>r</math> (usually a [[real number]] or [[rational number]], but also a [[complex number]] or any non-zero element of a [[field]]) is its multiplicative [[inverse with respect to an operation|inverse]]. The reciprocal is usually denoted <math>r^{-1}</math> or <math>\frac 1r</math>. | ||
<math>q</math> and <math>r</math> are multiplicative inverses of each other if and only if <math>r \cdot q = q \cdot r = 1</math>. | |||
== See Also == | |||
*[[Operator inverse]] | |||
[[Category:Definition]] | |||
{{stub}} | |||
Latest revision as of 10:25, 15 February 2025
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 
.
See Also
This article is a stub. Help us out by expanding it.
