Matrix Formulation Stability Analysis Assembling the system of equations, we obtain 0 dt 0 dt 0 SMA-HPC 2002 NUSSMA-HPC ©2002 N US 7 Stability Analysis Matrix Formulation Assembling the system of equations, we obtain 1 1 2 2 2 2 1 1 2 21 0 1 1 0 1 1 1 0 1 o j j N N N du u u dt x du u dt du x u dt u du u x dt υ υ υ − − − ∆ − = ∆ − − ∆ 0 0 A 2 2 2 +