Numerical Transforms

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Science  11 May 1990:
Vol. 248, Issue 4956, pp. 697-704
DOI: 10.1126/science.248.4956.697


Numerical computation of transforms is now widely practiced in science and industry and has been revolutionized by the development of fast transforms that make feasible computing projects that once could not be contemplated. The article discusses the significance of transforms in numerical work, defines the modern forms of several common transforms and their inverses, gives examples, and describes and gives references to methods of numerical evaluation.

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