Source: https://www.researchgate.net/profile/Piscoran-Laurian-Ioan/publication/330114655_A_NEW_STEFFENSEN-HOMEIER_ITERATIVE_METOD_FOR_SOLVING_NONLINEAR_EQUATIONS/links/5c2e31eaa6fdccd6b58f827a/A-NEW-STEFFENSEN-HOMEIER-ITERATIVE-METOD-FOR-SOLVING-NONLINEAR-EQUATIONS.pdf