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    arctangent
  1. arc tangent

    • IPA[ärk ˈtanjənt]
    • n.
      a mathematical function that is the inverse of the tangent function.
    • noun: arc tangent, plural noun: arc tangents

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    • IPA[ˈɑːktan(d)ʒ(ə)nt]

    英式

    • n.
      a mathematical function that is the inverse of the tangent function.

    Oxford Dictionary