Automatic generation of quadrature formulae for oscillatory integrals
Open Access
- 1 January 1975
- journal article
- research article
- Published by Oxford University Press (OUP) in The Computer Journal
- Vol. 18 (2) , 173-176
- https://doi.org/10.1093/comjnl/18.2.173
Abstract
An effective method of generating general quadrature formulae of the Newton-Cotes type is developed and extended to the case of oscillatory integrands where Filon-type formulae are produced. Coefficients of the Newton-Cotes formulae of order n ≤ 10 are reproduced for checking purposes and examples of Filon-type coefficients are quoted. An application of these formulae to the evaluation of an oscillatory integral is presented. A simple method of generating product combinations arising from the Lagrangian interpolation formulae employed is described which forms the basis of the computational method.Keywords
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