cotangent

n. 余切 [电] 余切

发音

US /ˈkoʊˌtænd͡ʒənt/

词形变化

cotangents 复数 cotangents

释义与例句

n.
  1. 1.

    In a right triangle, the reciprocal of the tangent of an angle. Symbols: cot, ctg, or ctn

    余切

    数学

词汇关系

名词

上位词 2

circular function trigonometric function

相关短语

arc cotangent 反余切 hyperbolic cotangent

词源

Etymology tree Proto-Indo-European *ḱe Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Latin co-der. English co- Proto-Indo-European *teh₂g- Proto-Italic *tangō Latin tangō Latin tangēns Latin tangentembor. English tangent English cotangent From co- + tangent.

来源：wiktionary