DocsFunctionsmathmath.Atanmath.AtanReturns the arctangent, in radians, of the given number.Syntaxmath.Atan VALUEReturnsfloat64 New in v0.130.0{{ math.Atan 1 }} → 0.7853981633974483 Last updated: January 31, 2025 : Improve new-in shortcode (367d3a7ab)Improve this page