Negative reciprocal

Pronunciation: /ˈnɛg.ə.tɪv rɪˈsɪp.rə.kəl/ Explain

The negative reciprocal of a real number a is -1/a. The slopes of perpendicular lines are negative reciprocals of each other.


  1. McAdams, David E.. All Math Words Dictionary, negative reciprocal. 2nd Classroom edition 20150108-4799968. pg 123. Life is a Story Problem LLC. January 8, 2015. Buy the book

Cite this article as:

McAdams, David E. Negative reciprocal. 4/26/2019. All Math Words Encyclopedia. Life is a Story Problem LLC.

Revision History

4/26/2019: Changed equations and expressions to new format. (McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
9/5/2018: Removed broken links, updated license, implemented new markup. (McAdams, David E.)
8/5/2010: Initial version. (McAdams, David E.)

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