arctan

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

Similar
arc tangentarctangentinverse tangent
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Meanings

nounarctan (plural arctans)

plural arctans · alternative arctg

  1. abbreviationAbbreviation of arctangent.

    tan (arctan 2/2)=1/ϕ

Synonyms & antonyms

nounthe inverse function of the tangent; the angle that has a tangent equal to a given number

Similar
arc tangentarctangentinverse tangent
Broader
trigonometric functioncircular function
Also see
arctangentinverse tangent

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From arc- + translingual tan.

Full word history & related roots →

Rhymes & wordplay

Anagrams

Cartan
Cite this entry
APA

arctan. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/arctan

MLA

“arctan.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arctan. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “arctan,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/arctan.

Source: arctan on Wiktionary, CC BY-SA 4.0.