arc tangent
noun Trigonometry.
the angle, measured in radians, that has a tangent equal to a given number. Abbreviation: arc tan; Symbol: tan−1
Also called
inverse tangent.
Origin of arc tangent
First recorded in 1905–10
Words nearby arc tangent
arc secant,
arc second,
arc sine,
arc spectrum,
arc tan,
arc tangent,
arc welding,
arc, d',
arc-back,
arc-boutant,
arc-jet engine
Scientific definitions for arc tangent
arc tangent
The inverse of the tangent function.