On the numerical approximations and simulations of damped and undamped Duffing oscillators. Journal of Pure and Applied Sciences (Science Forum), [S. l.], v. 21, n. 3, 2026. DOI: 10.70882/ejhmcb37. Disponível em: https://atbuscienceforum.com.ng/index.php/jpas/article/view/417. Acesso em: 3 sep. 2026.