Pronunciation: /ɑɹkˈsi.kənt/ Explain
Abbreviations: asec, arcsec

Figure 1: Arcsecant.

The arcsecant function returns the angle whose secant is the given value. The arcsecant is a trigonometric function. The arcsecant is the functional inverse of the secant function. If secant(θ) = hypotenuse/adjacent then sec-1(hypotenuse/adjacent) = θ; Arcsecant is written arcsec or sec-1.

Definition: y = sec-1 x if and only if x = sec y.


  1. McAdams, David E.. All Math Words Dictionary, arcsecant. 2nd Classroom edition 20150108-4799968. pg 19. Life is a Story Problem LLC. January 8, 2015. Buy the book

Cite this article as:

McAdams, David E. Arcsecant. 4/12/2019. All Math Words Encyclopedia. Life is a Story Problem LLC.

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Revision History

4/12/2019: Changed equations and expressions to new format. (McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
6/15/2018: Removed broken links, updated license, implemented new markup, expanded article. (McAdams, David E.)
5/5/2011: Initial version. (McAdams, David E.)

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