Homework for Math/CS 467/667

Please turn in only the problems indicated with an asterisk (*). Your work should be presented in complete English sentences using proper grammar, spelling and punctuation. Submitted work should consist of clean copy with no scratch marks. Do not submit pages that have been torn from a spiral notebook. Staple and number the pages in each homework assignment. It is recommended that you write your final copy in pencil thorougly removing any errors with a good eraser or type it using a computer. If you choose to write your final copy in ink, take care to avoid mistakes. Don't submit homework that is difficult to read or contains errors that have been poorly erased or scratched out. Do not submit your rough copy: it will not be graded.
    Homework #1 Due ???
        Page 59 in Morton and Mayers problems 5, 7, 8 ,9
    
        Consider the RK method where
            k1 = h f(yn, tn)
            k2 = h f(yn + k1/3, tn + h/3)
            k3 = h f(yn + 2 k2/3, tn + 2 h/3)
            k4 = h f(yn + k3, tn + h)
          yn+1 = yn + (A k1 + B k2 + C k3 + D k4)/(A+B+C+D)
    
        Find choices of A, B, C and D that maximize the order
        of this scheme.  What is the maximum order?  Is the
        choice of A, B, C and D unique that achieve this order?

        Graduate students turn in 4 of the 5 above problems.
        Undergraduate students turn in 3 of the 5 problems.

Last updated: Tue Jan 22 19:04:23 PST 2008