Arctangent

Pronunciation: /ɑrk tæn dʒənt/ ?
returns the angle for which the tangent is a particular value. Arctangent can be written arctan or tan-1. Definition: y = tan-1 x if and only if x = tan y.

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Arctangent. 2001-01-01. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/a/arctangent.html.

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