2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93481The ground state energy of the quartic anharmonic oscillator is calculated by employing the Miller-Good method. For this purpose an extension of the procedure is developed, which is suitable for considering four turning points situations. A criterion for the selection of the auxiliary quantum mechanical problem is also advanced.LaTeX, one table and one latex figureQuantum Physicstext