Many engineering problems can be formulated as a system of linear equations in t

Question

Many engineering problems can be formulated as a system of linear equations in the form Ax = b Write a Matlab function with the input variables A and b, and evaluate x using the matrix inverse method. (Hint page 3 of the lecture note "Solution of linear equations" and the matlab command "inv".) Write a Matlab function with the input variables A and b, and evaluate x using the Gaussian elimination method. (Hint page 7 of the lecture note "Solution of linear equations" and check the "slash" in matlab.) Write a Matlab function with the input variables A, b and x(0), and evaluate x using the Gauss-Seidel method.(Hint page 10 of the lecture note "Solution of linear equations".)

Explanation / Answer

function A = lu_gauss(A)

[n,m] = size(A);

if n ~= m; error(

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