public static double asin(double angle)

// Java program to demonstrate working
// of java.lang.Math.asin() method
import java.lang.Math;
 
class Gfg {
 
    // driver code
    public static void main(String args[])
    {
        double a = Math.PI;
 
        // Output is NaN, because Math.PI gives 3.141 value
        // greater than 1
        System.out.println(Math.asin(a));
 
        // convert Math.PI to radians
        double b = Math.toRadians(a);
 
        System.out.println(Math.asin(b));
 
        double c = 1.0;
        System.out.println(Math.asin(c));
 
        double d = 0.0;
        System.out.println(Math.asin(d));
 
        double e = -1.0;
        System.out.println(Math.asin(e));
 
        double f = 1.5;
 
        // value of f does not lie in between -1 and 1
        // so output is NaN
        System.out.println(Math.asin(f));
    }
}

NaN
0.054858647341251204
1.5707963267948966
0.0
-1.5707963267948966
NaN