Open AccessComputational study of a 3-step hybrid integrators for third order ordinary differential equations with shift of three off-step points
Author(s) -
Mark I. Modebei,
Olumide O. Olaiya,
Ignatius P. Ngwongwo
Publication year - 2021
Publication title -
journal of the nigerian society of physical sciences
Language(s) - English
Resource type - Journals
ISSN - 2714-4704
DOI - 10.46481/jnsps.2021.323
Subject(s) - integrator , ordinary differential equation , third order , consistency (knowledge bases) , convergence (economics) , mathematics , boundary value problem , stability (learning theory) , block (permutation group theory) , initial value problem , order of accuracy , numerical analysis , differential equation , boundary (topology) , computer science , numerical stability , mathematical analysis , geometry , computer network , philosophy , theology , bandwidth (computing) , machine learning , economic growth , economics
A Block of hybrid method with three off-step points based is presented in this work for direct approximation of solution of third-order Initial and Boundary Value Problems (IVPs and BVPs). This off-step points are formulated such that they exist only on a single step at a time. Hence, these points are shifted to three positions respectively in order to obtain three different integrators for computational analysis. These analysis includes; order of the methods, consistency, stability and convergence, global error, number of functions evaluation and CPU time. The superiority of these methods over existing methods is established numerically on different test problems in literature