Mathematical Library Methods

Chapter 7

Mathematical Library Methods

Class 10 - Logix Kips ICSE Computer Applications with BlueJ

Share with a Friend

Java Program: Power and Square Root Calculation

Write a program to print:

1. x to the power y
2. the square root of y

The values of x and y are 81 and 3, respectively.

public class PowerAndSquareRoot {
    public static void main(String[] args) {
 
        int x = 81;
        int y = 3;
 
        // Calculations
        double power = Math.pow(x, y);
        double squareRoot = Math.sqrt(y);
 
        // Output
        System.out.println("x to the power y = " + power);
        System.out.println("Square root of y = " + squareRoot);
    }
}

x to the power y = 531441.0
Square root of y = 1.7320508075688772

Explanation

• Math.pow(x, y) calculates xʸ

                 81³ = 53144181

• Math.sqrt(y) calculates the square root of y

                √3 ≈ 1.732

✅ Concepts Used

• Math.pow() – power calculation
• Math.sqrt() – square root calculation

📌 Formatted Output (Optional)

System.out.printf("x to the power y = %.0f\n", power);

System.out.printf("Square root of y = %.3f", squareRoot);