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MATLAB HW2

# MATLAB HW2 - Section B05 Nicholas Nguyen 2 1 > C =[2 1 5 1...

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Section B05 Nicholas Nguyen 2.1 >> C = [2 1 5; 1 0 6; -6 2 4]; d = [-1; 2; 3]; >> x = C\d x =    -0.7778    -1.7593     0.4630 >> C*x-d ans =   1.0e-015 *    -0.4441          0          0 2.2 >> C = [-10 4; 15 -6]; d = [0; 0]; >> x = C\d Warning: Matrix is singular to working precision.  x =

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NaN    NaN 2.3 >> C = [1 -3 2; -2 6 -4; 4 -12 8]; d = [0; 0; 0]; >> rref([C d]) ans =      1    -3     2     0      0     0     0     0      0     0     0     0 There are 2 free Variables: x2 and x3. 2.4
2.6 >> C = [0.25 0.15 0.25 0.18 0.20; 0.15 0.28 0.18 0.17 0.05; 0.22 0.19 0.22 0.22 0.10; 0.20 0.15 0.20 0.28 0.15; 0.18 0.23 0.15 0.15 0.50] C =     0.2500    0.1500    0.2500    0.1800    0.2000     0.1500    0.2800    0.1800    0.1700    0.0500     0.2200    0.1900    0.2200    0.2200    0.1000     0.2000    0.1500    0.2000    0.2800    0.1500     0.1800    0.2300    0.1500    0.1500    0.5000

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MATLAB HW2 - Section B05 Nicholas Nguyen 2 1 > C =[2 1 5 1...

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