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
 McAdams, David E.. All Math Words Dictionary, arctangent. 2nd Classroom edition 201501084799968. 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.
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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.)