1. The undamped Duffing equation is known to be a Hamiltonian system: 2. But after years of hacking and duffing , I figured it out. 3. It is a discrete version of the Duffing equation. 4. The Duffing equation is an example of a dynamical system that exhibits chaotic behavior. 5. That's why you see guys like John Huston duffing four shots off the ground. 6. Munt ran into early trouble, duffing a chip from just off the second green and taking a bogey. 7. Corrections can be made by " duffing " ( re-coating ) the scribe sheet with special duffing liquid. 8. Corrections can be made by " duffing " ( re-coating ) the scribe sheet with special duffing liquid. 9. Moreover, the Duffing system presents in the frequency response the jump resonance phenomenon that is a sort of frequency hysteresis behaviour. 10. The Duffing equation can be seen as describing the oscillations of a mass attached to a nonlinear spring and a linear damper.
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