4 Consider the linear system Ax b in the form 3 5 711 X21 1 4 7 14LT3 (a) Add a random perturbation to b with Ilanlla 0 1 and confirm the validity of the estimate Alcond(A) by direct computations of x, Ax, and cond(A) in MATLAB (b) Add a random perturbation to A with 11 0 1 and confirm the validity of the estimate

Question

4  Consider the linear system Ax   b in the form  3 5 711 X21 1 4  7 14LT3 (a) Add a random perturbation to b with Ilanlla 0 1 and confirm the validity of the estimate Alcond(A) by direct computations of x, Ax, and cond(A) in MATLAB (b) Add a random perturbation to A with 11  0 1 and confirm the validity of the estimate

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Question

4. Consider the linear system Ax = b in the form -3 5-711 X21=1-4 -7 14LT3 (a) Add a random perturbation to b with Ilanlla-0.1

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