What does "arctangent" mean?

Any of several single-valued or multivalued functions that are inverses of the tangent function. Symbol: arctan, tan⁻¹

Arctangent

Common synonyms include: arctan, inverse tangent, angle of arctan, arc tangent, arctan angle, arctangent angle.

noun

noun ·Rare ·Advanced level

Noun

1
Any of several single-valued or multivalued functions that are inverses of the tangent function. Symbol: arctan, tan⁻¹
2
the inverse function of the tangent; the angle that has a tangent equal to a given number wordnet

From arc- + tangent.

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