Java Data Type Tutorial - Java Math.atan(double a)

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Syntax

Math.atan(double a) has the following syntax.

public static double atan(double a)

Example

In the following code shows how to use Math.atan(double a) method.

//  w  w  w  . j  a va 2 s. com
public class Main {

   public static void main(String[] args) {

      // get a variable x which is equal to PI/2
      double x = Math.PI / 2;

      // convert x to radians
      x = Math.toRadians(x);

      // get the arc tangent of x
      System.out.println("Math.atan(" + x + ")" + Math.atan(x));
   }
}

The code above generates the following result.

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