Java sqrt() Method

Java Number Class

The sqrt() method returns the arithmetic square root of the argument.

Syntax

double sqrt(double d)

Parameters

• d -- any primitive data type.

Return Value

Returns the arithmetic square root of the argument.

Example

public class Test{ 
    public static void main(String args[]){
        double x = 11.635;
        double y = 2.76;

        System.out.printf("e 的值为 %.4f%n", Math.E);
        System.out.printf("sqrt(%.3f) 为 %.3f%n", x, Math.sqrt(x));
    }
}

Compile the above program, and the output result is:

e 的值为 2.7183
sqrt(11.635) 为 3.411

Java Number Class