Pronunciation: /ɑrk tæn 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.

Cite this article as:

McAdams, David E. Arctangent. 6/15/2018. All Math Words Encyclopedia. Life is a Story Problem LLC.

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Revision History

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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