= 23 = = Question 5: [7 Marks] Consider the linear system: 2x1 X2 4, -X1 + 2x2 1, -X2 + 2x3 2. Find the optimal w for the above linear system to use in successive over relaxation (SOR). Explain the result you use to get the optimal value of w. Use it to calculate two iteration with SOR method, starting with zero vector as initial guess. = 23 = = Question 5: [7 Marks] Consider the linear system: 2x1 X2 4, -X1 + 2x2 1, -X2 + 2x3 2. Find the optimal w for the above linear system to use in successive over relaxation (SOR). Explain the result you use to get the optimal value of w. Use it to calculate two iteration with SOR method, starting with zero vector as initial guess