Open AccessA note on the convergence rate of Kumar–Singh–Srivastava methods for solving nonlinear equations
Author(s) -
J. P. Jaiswal
Publication year - 2017
Publication title -
journal of the egyptian mathematical society
Language(s) - English
Resource type - Journals
eISSN - 2090-9128
pISSN - 1110-256X
DOI - 10.1016/j.joems.2016.10.003
Subject(s) - mathematics , rate of convergence , convergence (economics) , order (exchange) , convergence tests , normal convergence , derivative (finance) , compact convergence , nonlinear system , computer science , key (lock) , economics , economic growth , physics , computer security , finance , quantum mechanics , financial economics
In the present article, it is shown that both the methods presented in Kumar et al. (2013) do not possess the order of convergence as claimed. One of the two methods, derivative involved method possesses the convergence rate of eighth order whereas the other derivative free method possesses sixth order convergence. The theoretical convergence rate is also validated by computational order of convergence