Linear and non linear equation. The matrix sign function is a useful numerical tool for the solution of control theory problems model reduction, optimal control [ 15 ] , and the bottleneck computation in many lattice quantum chromodynamics computations [ 16 ] and dense linear algebra computations block diagonalization, eigenspectrum separation [ 11 , 17 ]. Margareta Bertilsson. I'm here to get homework help. Its use is illustrated in eighteen problems, with two to five equations.
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