| 释义 | arctan
 arctan(ˈɑːkˌtæn) mathsabbreviation for1.  (Mathematics) arctangent: the function the value of which for a given argument is the angle in radians (between -π/2 and π/2) the tangent of which is that argument: the inverse of the tangent functionThesaurusEncyclopediaSeearc tangent| Noun | 1. | arctan - the inverse function of the tangent; the angle that has a tangent equal to a given numberarc tangent, arctangent, inverse tangentcircular function, trigonometric function - function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle | 
 ARCTAN
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 | ARCTAN➣Arcus Tangent (trigonometry) | 
 arctan
 Synonyms for arctannoun the inverse function of the tangentSynonymsarc tangentarctangentinverse tangent
 Related Wordscircular functiontrigonometric function
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