Calculates the arc (inverse) tangent using the tangent of an angle.

Syntax

@ATan( tangent )

Parameters

tangent

Number or number list. The tangent of an angle.

angle

Number or number list. An angle, in radians, from -pi/2 through pi/2. This represents an angle between -90 and 90 degrees.

If the parameter is a list, the function operates on each element of the list, and the return value is a list with the same number of elements.

Language cross-reference

ATn function in LotusScript language

Example
See Also

@ATan2
@Tan
@Pi
Performing arithmetic operations

Glossary