1. arctangent

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


  • circular function
  • inverse tangent
  • arc tangent
  • trigonometric function


  • arc- (English)
  • tangent (English)
  • tangentem (Latin)

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Example sentences of the word arctangent

1. Adjective
To find the angle measurement, you need to use the inverse tangent, or arctangent function on the calculator.

2. Noun, singular or mass
Convert the decimal foot taper to an angle in degrees by taking the arctangent of the taper.