3. In our Iteration sub, we are doing a fixed number of iterations (.e., n llerations- no more, no less). Sometimes, our ferative process may require fewer iterations or more iterations

and we want to make sure that our sub can be adaptable. Now, we are going to adapt our Iteration sub such that it will keep iterating until a certain tolerance is met. The flowchart for this is shown on the next page. CHEN 1310 BIO begin inputx Lab 900 Tel-0.001 xnew-x) Er-x- E Tol? And the code for this new flowchart is shown here: xxnow Loop Until Err Pol MogBox FormatNumber (3) End Sub option Explicit Sub Iteration () Din xinit As Double, x As Double Din Err As Double, Tol As Double, new As Double xinit InputBox("Please enter initial guess.") x-xinit 701 = 0.001 Do xnow = sqr(x (1/3) + 5*x) Err- Abs (xnew- x) output x and Page 3 Adapt your code to that shown above. Notice that we have a Do...Loop Until in which we calculate an error (Err) and compare it to a tolerance (Tol). Tol is a value that can be set by the user-we iterate until (and hence the Loop Until)-the difference between subsequent x-values is less than or equal to Tol. Note that we also need to add Dim statements for Err, Tol, and xnew. We have eliminated in and I and the Dim statements for n and I because they are no longer needed. Now would be a good time to save!/nStep through (using FB) your code to make sure it is working. Enter 4 as the initial guess. You should have gotten the same answer as you did before using a fixed number of iterations. The code is a bit more involved, but why do you think implementing the loop might be more advantageous than a fixed number of terations? CHEN 1310 Lab 905 Page 4 What is the significance of xnew? In other words, why do we need to define xnew as a separate variable?