]>

Table 3: Spectral radius for different time step size of the Euler and NSFD numerical schemes.

Time step (Euler) Euler (NSFD) NSFD () 0.01 0.996667 Convergence 0.996678 Convergence 0.1 0.9935 Convergence 0.967742 Convergence 0.2 0.933333 Convergence 0.9375 Convergence 0.25 1.22302 Divergence 0.923077 Convergence 0.5 3.44604 Divergence 0.857143 Convergence 1 7.89207 Divergence 0.75 Convergence 10 87.920 Divergence 0.230769 Convergence