Hi,
I guess the count should be incremented in the place where fx1 is being compared and it should be conditioned in a loop to get the number of iterations.
function [root,count]=NewtonMethod(c0,c,x)
count=0;
fx1 = poly_val(c0,c,x);
fx2 = poly_val(c0,c,x +0.001);
m =(fx2-fx1)/(0.001);
newGuess = x-((fx1/m));
while fx1 < (1*10^-8)
fx1 = poly_val(c0,c,newGuess);
fx2 = poly_val(c0,c,newGuess+0.001);
m = (fx2-fx1)/(0.001);
newGuess = newGuess-((fx1)/(m));
fx1 = poly_val(c0,c,newGuess);
count = count+1;
end
root = newGuess;
fprintf('number of times is = %i \n' , count);
end
Hope this works!
