A Nonstandard Dynamically Consistent Numerical Scheme Applied to Obesity Dynamics

Table 3

Spectral radius for different time step size ℎ of the Euler and NSFD numerical schemes.

Time step ℎ	𝜌 (Euler)	Euler	𝜌 (NSFD)	NSFD (𝜓(ℎ)=ℎ)
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