 arctangent

arc tangent
n.
The inverse of the tangent function.
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Universalium. 2010.
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Universalium. 2010.
arctangent — noun Date: circa 1889 the inverse function of the tangent < if y is the tangent of θ, then θ is the arctangent of y > … New Collegiate Dictionary
arctangent — noun Any of several single valued or multivalued functions that are inverses of the tangent function. Symbol: arctan, tan Syn: inverse tangent … Wiktionary
arctangent — noun the inverse function of the tangent; the angle that has a tangent equal to a given number • Syn: ↑arc tangent, ↑arctan, ↑inverse tangent • Hypernyms: ↑trigonometric function, ↑circular function … Useful english dictionary
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