arc tangent


nounTrigonometry.
  1. the angle, measured in radians, that has a tangent equal to a given number. Abbreviation: arc tan; Symbol: tan−1

Origin of arc tangent

1
First recorded in 1905–10
  • Also called inverse tangent .

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

Scientific definitions for arc tangent

arc tangent

  1. The inverse of the tangent function.

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