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Java Math.toDegrees() Method

By Chaitanya Singh | Filed Under: java

Java Math.toDegrees() method converts the angle given in radians to degrees. This is the approximate conversion and result are not exactly what you would expect.

public class JavaExample
{
  public static void main(String[] args)
  {
    double radians = Math.PI;

    // radians to degrees conversion
    double degrees = Math.toDegrees(radians);
    System.out.println(degrees);
  }
}

Output:

180.0

Syntax of Math.toDegrees() method

Math.toDegrees(Math.PI/90); //returns 2.0

toDegrees() Description

public static double toDegrees(double radians): It returns the approximate angle value in degrees after the conversion.

toDegrees() Parameters

  • radians: A double value that represents angle in radians.

toDegrees() Return Value

  • The measurement of given argument radians in degrees.
  • If the given argument is NaN (Not a number), then it returns NaN.
  • If the given argument is zero, then it returns zero with the same sign.
  • If the given argument is infinite, then it returns the infinity with the same sign.

Example 1: Radians to Degrees Conversion

public class JavaExample
{
  public static void main(String[] args)
  {
    double r1 = Math.PI;
    double r2 = Math.PI/4;
    double r3 = Math.PI/10;
    System.out.println(Math.toDegrees(r1));
    System.out.println(Math.toDegrees(r2));
    System.out.println(Math.toDegrees(r3));
  }
}

Output:

Java Math.toDegrees() Example Output_1

Example 2: Zero, NaN and Infinity to Degrees

public class JavaExample
{
  public static void main(String[] args)
  {
    double r1 = 0;
    double r2 = 0.0/0; //NaN
    double r3 = Double.POSITIVE_INFINITY; //infinity
    System.out.println(Math.toDegrees(r1));
    System.out.println(Math.toDegrees(r2));
    System.out.println(Math.toDegrees(r3));
  }
}

Output:

Java Math.toDegrees() Example Output_2

Example 3: Double max and min values to degrees

public class JavaExample
{
  public static void main(String[] args)
  {
    double r1 = Double.MAX_VALUE;
    double r2 = Double.MIN_VALUE;
    System.out.println(Math.toDegrees(r1));
    System.out.println(Math.toDegrees(r2));
  }
}

Output:

Java Math.toDegrees() Example Output_3

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