noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Abbreviation of arctangent. abbreviation, alt-of

   "tan (arctan 2/2)=1/ϕ"

2. 2
   the inverse function of the tangent; the angle that has a tangent equal to a given number wordnet

Synonyms

All synonyms

arc tangentarctangentinverse tangentinverse tangent

Etymology

From arc- + tan.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.