The ATAN function returns the inverse tangent of a value expressed in radians.

This function can be useful to measure the steepness of a rolling trend line as it accelerates or decelerates over time.

ATAN(Value)

ArgumentData typeDescription
ValueNumber

The tangent of the angle for which you want to calculate the arctangent.

The input can be any finite number.

The ATAN() function returns a numeric value between -π/2 and π/2, inclusive.

This function is only available in the Polaris Calculation Engine.

ATAN(1)

Returns NaN when Angle is NaN.

FormulaResult
ATAN(1)0.7854
ATAN(1) * 180 / PI()45
TODEGREES(ATAN(1))45