Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun arctan

1 sense of arctan

Sense 1
arc tangent, arctangent, arctan, inverse tangent -- (the inverse function of the tangent; the angle that has a tangent equal to a given number)
       => trigonometric function, circular function -- (function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle)