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Java Math.tan() Method

By Chaitanya Singh | Filed Under: java

Java Math.tan() method returns the trigonometric tangent of the given angle. This angle value (in radians) is passed as an argument to this method. For example, Math.tan(Math.toRadians(0)) returns 0.0.

public class JavaExample
{
  public static void main(String[] args)
  {
    double degrees = 0;
    //conversion degree to radians
    double radians = Math.toRadians(degrees);
    System.out.println(Math.tan(radians));
  }
}

Output:

0.0

Syntax of Math.tan() method

Math.tan(Math.toRadians(30)); //returns 0.5773502691896257

tan() Description

public static double tan(double a): Returns the trigonometric tangent of the given angle a.

tan() Parameters

  • The double argument a in radians.

tan() Return Value

  • Returns trigonometric tangent of the argument.
  • If the argument is NaN (Not a number) or infinity, then it returns NaN.
  • If the argument is zero, then it returns zero with the same sign.

Example 1

public class JavaExample
{
  public static void main(String[] args)
  {
    double degrees = 0;
    double degrees2 = 45;
    double degrees3 = 90;
    double degrees4 = 180;
    System.out.println(Math.tan(Math.toRadians(degrees)));
    System.out.println(Math.tan(Math.toRadians(degrees2)));
    System.out.println(Math.tan(Math.toRadians(degrees3)));
    System.out.println(Math.tan(Math.toRadians(degrees4)));
  }
}

Output:

Java Math.tan() Example Output_1

Example 2

public class JavaExample
{
  public static void main(String[] args)
  {
    double degrees = 45;
    double degrees2 = -45;
    double degrees3 = 90;
    double degrees4 = -90;
    System.out.println(Math.tan(Math.toRadians(degrees)));
    System.out.println(Math.tan(Math.toRadians(degrees2)));
    System.out.println(Math.tan(Math.toRadians(degrees3)));
    System.out.println(Math.tan(Math.toRadians(degrees4)));
  }
}

Output:

Java Math.tan() Example Output_2

Example 3

public class JavaExample
{
  public static void main(String[] args)
  {
    double degrees = Double.MAX_VALUE;
    double degrees2 = Double.MIN_VALUE;
    double degrees3 = 0.0/0; //NaN
    double degrees4 = 10.0/0; //Infinity
    System.out.println(Math.tan(Math.toRadians(degrees)));
    System.out.println(Math.tan(Math.toRadians(degrees2)));
    System.out.println(Math.tan(Math.toRadians(degrees3)));
    System.out.println(Math.tan(Math.toRadians(degrees4)));
  }
}

Output:

Java Math.tan() Example Output_3

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