Use "help sprintf" and "help disp" in Matlab to understand how to use "sprintf" and "disp" to display the data. Here is an example: disp(sprintf('I have n=%d and x=%g but f=%f. ', 2, 1.22, 1.22)) This will give the following result in Matlab: I have n = 2 and x = 1.22 but f = 1.220000. Write a Matlab function for Newton's method. Your file mynewton.m should start with: function x = mynewton(f, df, x0, to1, nmax) Among the input variables, f, df are the function f and its derivative f', x0 is the initial guess, to1 is the error tolerance, and nmax is the maximum number of iterations. The output variable x is the result of the Newton iterations. Use sprintf and "disp" to display your result in each iteration so you can check the convergence along the way. First, test your function with Example 5.7 in Section 5.4, computing squareroot 2. Then, use your Matlab function to find a root of f(x) = e^-x - cos(x) on the interval [1.1, 1.6]. Use to1 = 1e = 12 and nmax = 10. You should choose an initial guess x_0 on the interval [1.1, 1.6]. What is your answer? What to hand in: Print out your files mynewton.m, files for functions f(x) and f'(x), script file, test result for the example of squareroot 2 and for the root of f(x) = e^-x - cos(x)