Math. 455-01 Second Supplementary Assignment
  1. Program Algorithm~5 in the handout Univariate interval Newton methods using INTLIB_90.
  2. Apply the program to the function f and the function f' of problem 3b, page 9.
  3. Use the results to provide the answer to problem 3b, page 9, as well as a mathematical proof that the answer is correct. (Hint: Once small intervals have been found containing the zeros of f and f', evaluate f over these intervals and, using interval arithmetic, at the end points 2 and 4, to get upper and lower bounds on the maximum of |f| over [2,4].)
Contact the instructor if you have any questions about this.