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StrictMath asin() Method in Java With Examples

Last Updated : 19 Jul, 2018
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The java.lang.StrictMath.asin() is an inbuilt method of StrictMath class which is used to return the arc sine of a specified value. The returned angle is in within the range of -pi/2 and pi/2. The method gives rise to two special results:
  • If the absolute value of the argument is greater than 1 or the argument is itself a NaN then the result is also NaN.
  • If the passed argument is 0, then the output is also 0 with the same sign as the argument.
Syntax : 
public static double asin(double val)
Parameters: This method accepts one parameter val of double type and refers to the value whose arc sine is to be returned. Return Value : The method returns the arc sine value of the argument. Examples : 
Input: val = 0.72
Output: 0.80380231893303

Input: val = 7.0
Output: NAN

Input: val = 0.0
Output: 0.0
Below programs illustrate the java.lang.StrictMath.asin() method: Program 1: java 
// Java program to illustrate the
// java.lang.StrictMath.asin()
import java.lang.*;

public class Geeks {

    public static void main(String[] args)
    {

        double val1 = 0.65, val2 = 3.00, val3 = 0;

        double asinvalue = StrictMath.asin(val1);
        System.out.println(" The arc sine value is = "+
                                            asinvalue);

        asinvalue = StrictMath.asin(val2);
        System.out.println("The arc sine value is = "+
                                            asinvalue);
                          
        asinvalue = StrictMath.asin(val3);
        System.out.println("The arc sine value is = "+
                                           asinvalue);
    }
}
Output: 
The arc sine value is = 0.7075844367253556
The arc sine value is = NaN
The arc sine value is = 0.0
Program 2: java 
// Java program to illustrate the
// java.lang.StrictMath.asin()
import java.lang.*;

public class Geeks {

    public static void main(String[] args)
    {

        double val1 = -0.85, val2 = -2.00, val3 = 0;

        double asinvalue = StrictMath.asin(val1);
        System.out.println(" The arc sine value is = "+
                                            asinvalue);

        asinvalue = StrictMath.asin(val2);
        System.out.println("The arc sine value is = "+
                                            asinvalue);

        asinvalue = StrictMath.asin(val3);
        System.out.println("The arc sine value is= "+
                                            asinvalue);
    }
}
Output: 
The arc sine value is = -1.015985293814825
The arc sine value is = NaN
The arc sine value is= 0.0

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