Java Math.pow() method

The java.lang.Math.pow() is used to return the value of first argument raised to the power of the second argument. The return type of pow() method is double.

Syntax

Parameter

a= base 
b= exponent 

Return

This method returns the value of a^b

If the second argument is positive or negative Zero, this method will return 1.0.
If the second argument is not a number (NaN), this method will return NaN.
If the second argument is 1, this method will return the result same as the first argument.

Example 1

public class PowExample1
{
    public static void main(String[] args) 
    {
        double x = 5;
        double y = 4;
        //returns 5 power of 4 i.e. 5*5*5*5
        System.out.println(Math.pow(x, y));
    }
}

Test it Now

Output:

625.0

Example 2

public class PowExample2
{
    public static void main(String[] args) 
    {
        double x = 9.0;
        double y = -3;
        //return (9) power of -3
        System.out.println(Math.pow(x, y));
    }
}

Test it Now

Output:

0.0013717421124828531

Example 3

public class PowExample3
{
    public static void main(String[] args) 
    {
        double x = -765;
        double y = 0.7;
        //return NaN
        System.out.println(Math.pow(x, y));
    }
}

Test it Now

Output:

NaN

Example 4

public class PowExample4
{
    public static void main(String[] args) 
    {
        double x = 27.2;
        double y = 1.0;
        // Second argument is 1 so output is 27.2 
        System.out.println(Math.pow(x, y));
    }
}

Test it Now

Output: