Which of the systems in Exercise 10.5.3 lead to convergent Gauss-Seidel schemes? In each case, which converges

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Which of the systems in Exercise 10.5.3 lead to convergent Gauss-Seidel schemes? In each case, which converges faster, Jacobi or Gauss-Seidel?
In Exercise 10.5.3
Which of the following systems have a diagonally dominant coefficient matrix?
(a) 5x - y = 1
-x + 3y = - 1
(b) 1/2 x + 1/3 y = 1
1/5 x + 1/4 y = 6
(c) -5x + y = 3
-3x + 2y = -2
(d) -2x + y + z = 1
-x + 2y - z = -2
x - y + 3 z = 1
(e) - x + 1/2 y + 1/3 z = 1
1/3 x + 2y + 3/4 z = -3
2/3 x 1/4 y - 3/2 z = 2
(f) x - 2y + z = 1
-x + 2y + z = -1
x + 3y - 2z = 3
(g) - 4x + 2y + z = 2
-x + 3y + z = -1
x + 4y - 6z = 3
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Applied Linear Algebra

ISBN: 978-0131473829

1st edition

Authors: Peter J. Olver, Cheri Shakiban

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