Numerical Solutions of a Variable-Order Fractional Financial System

Figure 5

The numerical solutions of Example 4.2 with initial value (𝑥₀,𝑦₀,𝑧₀)=(0.2,0.3,0.2) and step size ℎ=0.02: stable equilibrium point ((a) 3D portrait; (b) 𝑥-𝑦 projection).

(a)

(b)