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Mathematics of Computation
Mathematics of Computation
ISSN 1088-6842(online) ISSN 0025-5718(print)

 

Two-parameter, arbitrary order, exponential approximations for stiff equations


Authors: Byron L. Ehle and Zdenek Picel
Journal: Math. Comp. 29 (1975), 501-511
MSC: Primary 65L99; Secondary 65D15
MathSciNet review: 0375737
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Abstract | References | Similar Articles | Additional Information

Abstract: A two-parameter family of approximations to the exponential function is considered. Constraints on the parameters are determined which guarantee the approximations are A-acceptable. The suitability of these approximations for 2-point A-stable exponential fitting is established. Several numerical methods, which produce these approximations when solving $ y' = \lambda y$, are presented.


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Additional Information

DOI: http://dx.doi.org/10.1090/S0025-5718-1975-0375737-7
PII: S 0025-5718(1975)0375737-7
Keywords: A-acceptable, exponential fitting, stiff equations
Article copyright: © Copyright 1975 American Mathematical Society



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