David
Farruggio

MathGenie

atan

Inverse tangent in radians

Syntax and Description

atan(X) returns the inverse tangent (tan^-1) of the elements of X. The atan function operates element-wise on arrays. For real elements of X, atan(X) returns values in the interval [-pi/2,pi/2]. For complex values of X, atan(X) returns complex values. All angles are in radians.

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