He Chengtian’s Inequalities for a Coupled Tangent Nonlinear System Arisen in Packaging System

Figure 1

Comparison of the approximate solution with the exact solution (asterisk: the approximate solution; continuous line: the exact solution).

(a) 𝜔₁=3, 𝜔₂=1

(b) 𝜔₁=4, 𝜔₂=3

(c) 𝜔₁=5, 𝜔₂=2

(d) 𝜔₁=5, 𝜔₂=3