Chawla-Numerov method revisited
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Data
1991-08-27
Autores
Meneguette Júnior, Messias [UNESP]
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Resumo
The well-known two-step fourth-order Numerov method was shown to have better interval of periodicity when made explicit, see Chawla (1984). It is readily verifiable that the improved method still has phase-lag of order 4. We suggest a slight modification from which linear problems could benefit. Phase-lag of any order can be achieved, but only order 6 is derived. © 1991.
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Palavras-chave
Chawla-Numerov method, higher derivatives and phase-lag, periodic second-order initial-value problems
Como citar
Journal of Computational and Applied Mathematics, v. 36, n. 2, p. 247-250, 1991.