Java.lang.Math.asin() Method

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Description

The java.lang.Math.asin(double a) returns the arc sine of an angle, in the range of -pi/2 through pi/2.Special cases:

  • If the argument is NaN or its absolute value is greater than 1, then the result is NaN.

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

A result must be within 1 ulp of the correctly rounded result. Results must be semi-monotonic.

Declaration

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

public static double asin(double a)

Parameters

  • a -- the value whose arc sine is to be returned.

Return Value

This method returns the arc sine of the argument.

Exception

  • NA

Example

The following example shows the usage of lang.Math.asin() method.

package com.tutorialspoint;

import java.lang.*;

public class MathDemo {

   public static void main(String[] args) {

      // get a variable x which is equal to PI/2
      double x = Math.PI / 2;

      // convert x to radians
      x = Math.toRadians(x);

      // get the arc sine of x
      System.out.println("Math.asin(" + x + ")=" + Math.asin(x));
   }
}

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

Math.asin(0.027415567780803774)=0.02741900326072046



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