Assignment 3

                        Marking Scheme and TA Comments


(1) For Problem 1, 3, 4, most students did quite well. For some students,
    a better discussion about the numerical results and the ratios between
    max_errors, in particular, is needed.  I took off 1 point if this was
    not adequate.


(2) For Problem 2, because of the complexity of the B-splines, it is very 
    easy to make minor mistakes in the program, which causes the method
    to not converge. If the program structure looks fine, but the max-errors 
    do not behave as expected, I took off 4 points.

(3) As we explained in the e-mail, because of ill-conditioning of matrix
    and machine precision, the errors will not decrease by 16 when m
    increases from 320 to 640. Students should notice and comment on
    this phenomenon. If they failed to do so, I took off 1 point even
    if all the max-errors are correct.