Java - Math sin(double x) Method

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Description

The Java Math sin(double a) returns the trigonometric sine of an angle. Special cases −

• If the argument is NaN or an infinity, then the result is NaN.

• If the argument is zero, then the result is a zero with the same sign as the argument.

The computed result must be within 1 ulp of the exact result. Results must be semi-monotonic.

Declaration

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

public static double sin(double a)

Parameters

a − an angle, in radians.

Return Value

This method returns the sine of the argument.

Exception

NA

Computing Trigonometric Sine of a Positive Double Value Example

The following example shows the usage of Math sin() method to get a sine value 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;

      // convert it to radian
      x = Math.toRadians(x);

      // print the trigonometric sine for this double
      System.out.println("Math.sin(" + x + ")=" + Math.sin(x));
   }
}

Output

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

Math.sin(0.7853981633974483)=0.7071067811865475

Computing Trigonometric Sine of a Negative Double Value Example

The following example shows the usage of Math sin() method to get a sine 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;

      // convert it to radian
      x = Math.toRadians(x);

      // print the trigonometric sine for this double
      System.out.println("Math.sin(" + x + ")=" + Math.sin(x));
   }
}

Output

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

Math.sin(-0.7853981633974483)=-0.7071067811865475

Computing Trigonometric Sine of a Zero Double Value Example

The following example shows the usage of Math sin() 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;

      // convert it to radian
      x = Math.toRadians(x);

      // print the trigonometric sine for this double
      System.out.println("Math.sin(" + x + ")=" + Math.sin(x));
   }
}

Output

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

Math.sin(0.0)=0.0