The java.lang.Math.asin() returns the arc sine of an angle in between -pi/2 and pi/2. Arc sine is also called as an inverse of a sine.
- 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.
Syntax :
public static double asin(double angle) Parameter : angle : the value whose arc sine is to be returned.
Return :
This method returns the arc sine of the argument.
Example 1 : To show working of java.lang.Math.asin() method.
// 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));
}
} |
Output:
NaN 0.054858647341251204 1.5707963267948966 0.0 -1.5707963267948966 NaN