Pronunciation: /ɑɹk.saɪn/ Explain
Abbreviations: asin, arcsin

Figure 1: Arcsine.

The arcsine function returns the angle whose sine is the given value. The arcsine is a trigonometric function. The arcsine is the functional inverse of the sine function. If sine(θ) = opposite/hypotenuse then sin-1(opposite/hypotenuse) = θ; Arcsine is written arcsin or sin-1.

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


  1. McAdams, David E.. All Math Words Dictionary, arcsine. 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. Arcsine. 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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