CISC 822 Homework, due Thursday, Nov 3.

Solving 7 of the 8 problems correctly will be considered a full submission. Solving the 8th correctly will be considered "extra credit".

  1. Exercise 4.2
  2. Exercise 5.1
  3. Exercise 5.2
  4. Exercise 5.4
  5. Exercise 5.6

    [In 5.4 and 5.6 you may assume the fundamental theorem of algebra: For a field F, and element a of F, a polynomial f(x) in F[x] satisfies f(a) = 0 if and only if x-a divides f(x).]

  6. Exercise 8.2
    1. Exercise 8.4
    2. Continuing 8.4, assume the ring supports the FFT. For which values of n = 2k is the FFT operation count, namely (9/2)n log(n) + 3n - 2, less than the Karatsuba operation count?
    1. Exercise 8.14
    2. Exercise 8.32