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 09-26-2004, 11:47 PM PM User | #1 reneeccski New Coder   Join Date: Sep 2004 Posts: 12 Thanks: 0 Thanked 0 Times in 0 Posts new to programming and java, need help for class Hello everyone! I was hoping someone might be able to give me a hand with the program I am writing for my intro cs class. We are studying algorithms and implementing them with java. I am totally new to programming, though I DO remember programming my TI-85 graphing calculator to output formulas back in high school several years ago! I am struggling with the code, not the math. Here is the problem: for f(x) = 0.1x^3 + 3.6 create an algorithm to find the root of the function and implement it in java For the algorithm, I am using Newton's Method to find the zero. Newton's Method is: xn+1 = xn - ( f(xn) / ( f'(xn) ) Here is the code I have written: Code: ```public class root { public static void main(String[] args) { //begin arguments //introduce variable u (the "guess" or [x sub n]), variable v ("guess +" or [x sub n+1]) double u=-10000; double v; //for function for(u=-10000; u<=10000; v=(u-(((0.3*u*u*u)+36)/((0.9*u)*(0.9*u))))) {if ((abs(double u))-(abs(double v)) <= 0.001); {System.out.println("The root of the function is " ); //I used Newton's Method here. In general terms, the formula is: //(x sub n+1) = (x sub n) - [ f(x) / f'(x) ] } } } }``` Could someone tell me where I'm going wrong? I want the solution accurate to 0.001. The root is actually appriximately -3.301. It is very frustrating to try to implement algorithms in code when my instructor isn't actually teaching java to the class and just expects us to be able to do it! --Renee Last edited by Antoniohawk; 09-27-2004 at 12:48 AM..