Multiplicative Inverse
Pronunciation: /ˈmʌl.tɪ.plɪˌkeɪ.tɪv ˈɪn.vɜrs/ Explain
The multiplicative inverse of
r
is a number r^{-1} such that
r · r^{-1} =
1.^{[2]}
The number 1 is used here because it is the
multiplicative identity.
.
The negative exponent
is used to indicate division. So r^{-1} =
1/r, which indicates that
r^{-1} is the multiplicative inverse
of r. The reciprocal
of a number is the same as the multiplicative inverse of a number.
Examples of multiplicative inverses:
References
- McAdams, David E.. All Math Words Dictionary, multiplicative inverse. 2nd Classroom edition 20150108-4799968. pg 121. Life is a Story Problem LLC. January 8, 2015. Buy the book
- Bettinger, Alvin K. and Englund, John A.. Algebra and Trigonometry. pp 4-6. www.archive.org. Last Accessed 9/2/2018. http://www.archive.org/stream/algebraandtrigon033520mbp#page/n18/mode/1up. Buy the book
More Information
- McAdams, David E.. Exponent. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 3/12/2009. http://www.allmathwords.org/en/e/exponent.html.
Cite this article as:
McAdams, David E. Multiplicative Inverse. 4/25/2019. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/m/multiplicativeinverse.html.
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Revision History
4/25/2019: Changed equations and expressions to new format. (
McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (
McAdams, David E.)
9/4/2018: Removed broken links, updated license, implemented new markup. (
McAdams, David E.)
8/7/2018: Changed vocabulary links to WORDLINK format. (
McAdams, David E.)
3/22/2008: Changed More Information section to current standards. (
McAdams, David E.)
8/10/2007: Initial version. (
McAdams, David E.)