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Java Math.toRadians() Method

By Chaitanya Singh | Filed Under: java

Java Math.toRadians() method converts the given angle in degrees to radians. This the approximate conversion and in most of the cases, it is inexact.

public class JavaExample
{
  public static void main(String[] args)
  {
    double degrees = 45;

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

Output:

0.7853981633974483

Syntax of Math.toRadians() method

Math.toRadians(90); // returns 1.5707963267948966

toRadians() Description

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

toRadians() Parameters

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

toRadians() Return Value

  • The measurement of given argument degrees in radians.
  • 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 infinity, then it returns the infinity with the same sign.

Example 1: Degrees to Radians Conversion

public class JavaExample
{
  public static void main(String[] args)
  {
    double d1 = 0;
    double d2 = 180;
    double d3 = -180;
    System.out.println(Math.toRadians(d1));
    System.out.println(Math.toRadians(d2));
    System.out.println(Math.toRadians(d3));
  }
}

Output:

Java Math.toRadians() Example Output_1

Example 2: Zero, NaN and Infinity to Radians

public class JavaExample
{
  public static void main(String[] args)
  {
    double d1 = 0;
    double d2 = 0.0/0; //NaN
    double d3 = 5.0/0; //infinity
    System.out.println(Math.toRadians(d1));
    System.out.println(Math.toRadians(d2));
    System.out.println(Math.toRadians(d3));
  }
}

Output:

Java Math.toRadians() Example Output_2

Example 3: Double max and min values to Radians

public class JavaExample
{
  public static void main(String[] args)
  {
    double d1 = Double.MAX_VALUE;
    double d2 = Double.MIN_VALUE;
    System.out.println(Math.toRadians(d1));
    System.out.println(Math.toRadians(d2));
  }
}

Output:

Java Math.toRadians() Example Output_3

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❮ Java Math

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