arctangent.
Any of several single-valued or multivalued functions that are inverses of the tangent function. Symbol: arctan, tan⁻¹
Meaning & usage
Any of several single-valued or multivalued functions that are inverses of the tangent function. Symbol: arctan, tan⁻¹
Where this word comes from
Etymology tree Proto-Indo-European *h₂erkʷ- Proto-Indo-European *h₂erkʷos Proto-Italic *arkuos Latin arcusder. English arc- Proto-Indo-European *teh₂g- Proto-Italic *tangō Latin tangō Latin tangēns Latin tangentembor. English tangent English arctangent From arc- + tangent.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.