A Numerical Algorithm for Solving Stiff Ordinary Differential Equations

An advanced method using block backward differentiation formula (BBDF) is introduced with efficient strategy in choosing the step size and order of the method. Variable step and variable order block backward differentiation formula (VSVO-BBDF) approach is applied throughout the numerical computati...

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Bibliographic Details
Main Authors: Yatim, S. A. M., Ibrahim, Z. B., Othman, K. I., Suleiman, M. B.
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2012
Subjects:
Online Access:http://eprints.usm.my/38091/
http://eprints.usm.my/38091/1/A_Numerical_Algorithm_for_Solving_Stiff_Ordinary_Differential_Equations.pdf
Description
Summary:An advanced method using block backward differentiation formula (BBDF) is introduced with efficient strategy in choosing the step size and order of the method. Variable step and variable order block backward differentiation formula (VSVO-BBDF) approach is applied throughout the numerical computation.The stability regions of the VSVO-BBDFmethod are investigated and presented in distinct graphs.The improved performances in terms of accuracy and computation time are presented in the numerical results with different sets of test problems. Comparisons are made between the proposed method and MATLAB’s suite of ordinary differential equations (ODEs) solvers, namely, ode15s and ode23s.