natch to construct a matrix A b A = A-diag(sun. y sety a) By construction, the en a) Py ald all add up to zero. To A = vander( I : 6); entries in each r e MATLAB to nes7 Ax. The matrix A should uct Ax. The matrix A pute the singular. Why? Explain, Usix Use the MATLA inv to compute the valu to tions det and com t of detA) and A- Which Me sa more reliable indicator of singuD f Singularo arity? h Use MATLAB to compute det(A) computed values of det(A) a Another way to check if a matrix is to compute its reduced rolingul MATLAB to compute the reduced row ech forms of A and A b) Use MATLAB to comm equal echelon form. Use e) To see what is going wrong, it helps to how MATLAB computes MATLAB routine for determinants first putes a form of the LU factorization of the matrix. The determinant of the matrix L tl, depending on whether an even or od number of row interchanges were used in the determinants. The com- is