Question: Let A = (a) For what values of c is A diagonally dominant? (b) Use a computer to find the smallest positive value of c

Let A =

(a) For what values of c is A diagonally dominant?
(b) Use a computer to find the smallest positive value of c > 0 for which Jacobi iteration converges.
(c) Find the smallest positive value of c > 0 for which Gauss-Seidel iteration converges. Is your answer the same?
(d) When they both converge, which converges faster-Jacobi or Gauss-Seidel? How much faster? Does your answer depend upon the value of c?

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