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Section B

A new variable step size block backward differentiation formula for solving stiff initial value problems

, , &
Pages 2391-2408 | Received 26 Oct 2012, Accepted 12 Feb 2013, Published online: 10 Apr 2013
 

Abstract

A new block backward differentiation formula of order 4 with variable step size is formulated. By varying a parameter in the formula, different sets of formulae with A-stability property can be generated. At the cost of an additional function evaluation, the accuracy of the method is seen to outperform some existing backward differentiation formula algorithms. The strategy involved in controlling the step size ratio is also described. The problems tested with the method show its efficiency in solving stiff initial value problems.

2010 AMS Subject Classifications:

Acknowledgements

We thank the editor in chief, the associate editor and the anonymous reviewers for their insightful comments, which improved the manuscript. We also wish to thank the Institute for Mathematical Research (INSPEM) and the Department of Mathematics, Universiti Putra Malaysia for supporting the research.

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