Question

How to calculate square root in Java

Answer 1

class Program {
    public static void main(String[] args) {
        double d1 = 3.14;
        double d2 = 25;
 
        // double sqrt(double d)
        System.out.printf("sqrt(%.3f) is %.3f%n", d1, Math.sqrt(d1));
        System.out.printf("sqrt(%.3f) is %.3f%n", d2, Math.sqrt(d2));
    }
}



/*
run:

sqrt(3.140) is 1.772
sqrt(25.000) is 5.000

*/

 

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Answer 2

class Program {
    public static void main(String[] args) {
        double value = 121.0;
  
        System.out.format("The square root of %.2f is %.2f", value, Math.pow(value, 0.5));
    }
}



/*
run:

The square root of 121.00 is 11.00

*/

 

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