# JavaScript Math atan() Function | Math.atan() in Javascript

Javascript Math atan( ) is an inbuilt function that is used to return the arctangent of a number in radians. Math.atan() method returns a numeric value between -pi/2 and pi/2 radians.

Javascript Math atan( ) is an inbuilt function that is used to return the arctangent of a number in radians. The Math.atan() method returns the numeric value between -pi/2 and pi/2 radians. Javascript atan() is the static method of Math; therefore, it is always used as a Math.atan(), rather than as a method of the Math object created.

### JavaScript Math atan()

If you want to find the arctangent value of a given argument in JavaScript, then JS Math.atan() method is useful. The atan() method comes handy in programming contexts dealing with any trigonometric expressions. Since atan() is a static method of Math, it can be used without creating an  object.

#### Syntax

``Math.atan(x)``

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