Arctangent

Pronunciation: /ɑɹkˈtæn.dʒənt/ Explain
Abbreviations: atan, arctan

Figure 1: Arctangent.

The arctangent function returns the angle whose tangent is the given value. The arctangent is a trigonometric function. The arctangent is the functional inverse of the tangent function. If tangent(θ) = opposite/adjacent then tangent-1(opposite/adjacent) = θ. Arctangent is written arctan or tan-1. Definition: y = tan-1 x if and only if x = tan y.

References

1. McAdams, David E.. All Math Words Dictionary, arctangent. 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. Arctangent. 4/12/2019. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/a/arctangent.html.

Image Credits

• All images and manipulatives are by David McAdams unless otherwise stated. All images by David McAdams are Copyright © Life is a Story Problem LLC and are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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.)