How can I plot a Lyapunov curve for this system \begin{cases} \frac{d\phi}{dx}=Z\\ \frac{dZ}{dx}=\frac{1}{B}(U\phi-\frac{A}{2}\phi^2)+\frac{f\cos\omega x}{B} \end{cases} with $$A=1, B=0.43, U=0.9, f=0.05, \omega= 0.5$$
2026-03-25 19:07:25.1774465645
Matlab code for Lyapunov
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