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%% Inverse Matrix % Compute the inverse of a 3-by-3 matrix. X = [1 0 2; -1 5 0; 0 3 -9] %% Y = inv(X) %% % Check the results. Ideally, |Y*X| produces the identity matrix. Since % |inv| performs the matrix inversion using floating-point computations, in % practice |Y*X| is close to, but not exactly equal to, the identity matrix % |eye(size(X))|. Y*X