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- package newton_sqrt;
- import java.util.Scanner;
- public class Newton_sqrt {
- public static void main(String[]args) {
- Scanner scan = new Scanner(System.in);
- System.out.println("Newton's Method for Square Roots");
- System.out.println("Please enter a number greater than zero:");
- double alpha = scan.nextDouble();
- double beta = alpha;
- double gamma = 1;
- while(Math.abs(beta-gamma)>.000001) {
- gamma = beta;
- beta = (0.5*((alpha/beta)+beta));
- }
- System.out.println("Newton says: " + beta);
- double delta= Math.sqrt(Math.abs(alpha));
- System.out.println("Math says: " + delta);
- scan.close();
- }
- }
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