Newton Raphson in Java code for beginners

Question

My professor told us to make a program that will materialize the Newton-Raphson method in java code. The thing is that we should use beginners code for this.

*Required: The program should return the value of x1 in each repetition and we must define the accuracy of the solution.(i.e double e=0.000005;)

*x1 = x0 - (f(x0)/f'(x0)) x0 stands for the value we think is close to the solution.

*"Any ideas?"* - If you want an explanation of Newton Raphson, try Googling it. — Stephen C, Nov 15 '15 at 21:40
I know what Newton's method is. I just cant materialize it into java. By begginer's code I mean simple code. — George.K, Nov 15 '15 at 21:42
There is no general way to get derivative _f'_. So you need to restrict yourself to a subset of functions. — Cœur, Aug 03 '17 at 15:05

ihm017 · Answer 1 · 2018-08-03T12:59:05.367

-1

Though it's very late, but my answer may help others who are finding implementation of Newton-Raphson method in Java. Below is the function with the implementation.

public static double squareRoot (double num)    {

 double sqrt = x;

 while (sqrt * sqrt/num > 1) {
   sqrt = sqrt - ((sqrt * sqrt - num) / (2 * sqrt));

   if ((sqrt * sqrt) / num == 1)
     break;

 }
 return sqrt;
 }

edited Aug 03 '18 at 12:59

answered Aug 03 '18 at 07:27

ihm017

182
9

Though there may be other better ways, but it's the simplest implementation i could think of implementing Newton Raphson in Java. – ihm017 Aug 14 '18 at 05:57

Newton Raphson in Java code for beginners

1 Answers1