Java StrictMath - scalb() Method
The java.lang.StrictMath.scalb() method returns a x 2b. If the exponent of the result is between Double.MIN_EXPONENT and Double.MAX_EXPONENT, the result is calculated exactly. In special cases it returns the following:
- If the first argument is NaN, NaN is returned.
- If the first argument is infinite, then an infinity of the same sign is returned.
- If the first argument is zero, then a zero of the same sign is returned.
Syntax
public static double scalb(double a, int b)
Parameters
a |
Specify value to be scaled by power of 2. |
b |
Specify power of 2 used to scale a. |
Return Value
Returns a x 2b.
Exception
NA.
Example:
In the example below, scalb() method returns a x 2b.
import java.lang.*; public class MyClass { public static void main(String[] args) { System.out.println(StrictMath.scalb(2.55, 4)); System.out.println(StrictMath.scalb(10, 3)); } }
The output of the above code will be:
40.8 80.0
❮ Java.lang - StrictMath