$\delta$

$\rho$

${\lambda }_1$

${\lambda }_2$

${\lambda }_3$

$arg{\lambda }_1$

$arg{\lambda }_2$

$arg{\lambda }_3$

$\left|arg{\lambda }_i\right|$

Stability Result

0.5

0.3

0.6502

$-0.3251+0.9039i$

$-0.3251-0.9039i$

0

−1.2255

1.2255

$\cancel{>}\frac{\pi }{4}\mathrm{,}\forall {\lambda }_i$

unstable

2

1

0.7709

$-0.3855+1.5639i$

$-0.3855-1.5639i$

0

−1.3291

1.3291

$\cancel{>}\frac{\pi }{4}\mathrm{,}\forall {\lambda }_i$

unstable

10

20

2.4781

$-1.2391+3.8218i$

$-1.2391-3.8218i$

0

−1.2573

1.2573

$\cancel{>}\frac{\pi }{4}\mathrm{,}\forall {\lambda }_i$

unstable