Java - Math toRadians(double x) method

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Description

The Java Math toRadians(double angdeg) converts an angle measured in degrees to an approximately equivalent angle measured in radians. The conversion from degrees to radians is generally inexact.

Declaration

Following is the declaration for java.lang.Math.toRadians() method

public static double toRadians(double angdeg)

Parameters

angdeg − an angle, in degrees

Return Value

This method returns the measurement of the angle angdeg in radians.

Exception

NA

Example 1

The following example shows the usage of Math toRadians() method for a positive double value.

package com.tutorialspoint;
public class MathDemo {
   public static void main(String[] args) {

      // get a double number
      double x = 45.0;

      // print the radian for this double
      System.out.println("Math.toRadians(" + x + ")=" + Math.toRadians(x));
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Math.toRadians(45.0)=0.7853981633974483

Example 2

The following example shows the usage of Math toRadians() method to get a radian of a negative double value.

package com.tutorialspoint;
public class MathDemo {
   public static void main(String[] args) {

      // get a double number
      double x = -45.0;

      // print the radian for this double
      System.out.println("Math.toRadians(" + x + ")=" + Math.toRadians(x));
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Math.toRadians(-45.0)=-0.7853981633974483

Example 3

The following example shows the usage of Math toRadians() method to get a value of a zero double values.

package com.tutorialspoint;
public class MathDemo {
   public static void main(String[] args) {

      // get a double number
      double x = 0.0;

      // print the radian for this double
      System.out.println("Math.toRadians(" + x + ")=" + Math.toRadians(x));
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Math.toRadians(0.0)=0.0