arctangent

Any of several singlevalued or multivalued functions that are inverses of the tangent function. Symbol: arctan, tanSyn: inverse tangent
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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 — arc tangent n. The inverse of the tangent function. * * * … Universalium
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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