A 2 × 2 process has the following steady-state gain matrix:
K= \begin{bmatrix} 1 & K_{12} \\ 10 & 1 \end{bmatrix} (18-62)
Calculate the determinant, RGA, eigenvalues, and singular values of K. Use K_{12}=0. as the base case; then recalculate the matrix properties for a small change,K_{12}=0.1.