.tan()

The Math.tan() method returns the tangent of an angle given in radians. The function accepts all real numbers except the values where cos(x) is equal to zero.

Syntax

Math.tan(double x)

Here, x is the argument passed to the function. Math.tan() accepts all real numbers as arguments.

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

Example

This example uses .tan() to return the tangent for (x):

// Main.java

public class Main {
  public static void main(String[] args) {
    double x = Math.PI / 2.0;    // Radians
    System.out.println(Math.tan(x));

    x = 0.0;
    System.out.println(Math.tan(x));
  }
}

This will produce the following output:

1.6197751905438615
0.0