clear all; clc;

i = 0;  % counter

m = 100;  % max number of iterations

x0 = 3;
   
while(i<=m)
   
    syms x y
    y = x^2-4;
    dy = diff(y);
    f = inline(dy)³
    y = x0^2-4;
    x1 = x0-y/f(x0);
    x0 = x1;
    i = i+1;
end


x = x1