arctangent

名词 n.
中文释义

英文释义

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

词形变化

arctangents plural

词源

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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