Java Math - tan() Method

The Java tan() method returns trigonometric tangent of an angle (angle should be in radians). In special cases it returns the following:

• If the argument is NaN or an infinity, then the result is NaN.
• If the argument is zero, then the result is a zero with the same sign as the argument.

In the graph below, tan(x) vs x is plotted.

Syntax

public static double tan(double arg)

Parameters

Return Value

Returns the trigonometric tangent of an angle.

Exception

NA.

Example:

In the example below, tan() method is used to find out the trigonometric tangent of an angle.

public class MyClass {
 public static void main(String[] args) {
  System.out.println(Math.tan(Math.PI/6));   
  System.out.println(Math.tan(Math.PI/4));
  System.out.println(Math.tan(Math.PI/3));     
 }
}

The output of the above code will be:

0.5773502691896257
0.9999999999999999
1.7320508075688767