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Journal ArticleDOI

Four67, a fast fourier transform package

J.P. Christiansen, +1 more
- 01 Jan 1984 - 
- Vol. 35, Iss: 3, pp 127-138
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This article is published in Computer Physics Communications.The article was published on 1984-01-01. It has received 4 citations till now. The article focuses on the topics: Fractional Fourier transform & Discrete Fourier transform (general).

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Journal ArticleDOI

Optimal smoothing of 'noisy' data by fast Fourier transform

TL;DR: The theory of optimal filtering and smoothing of noisy data is presented and implementation of this theory is made on the AS/7000 computer at Daresbury Laboratory.
Journal ArticleDOI

A computational theory of short pulse generation

M. W. McGeoch
- 01 Jun 1973 - 
TL;DR: In this article, the semi-classical equations for the electric field and population inversion in a two-level medium are simplified for the case of a saturable absorber cell which is shorter than the length of fluctuations in the optical-pulse envelope.
References
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An algorithm for the machine calculation of complex Fourier series

TL;DR: Good generalized these methods and gave elegant algorithms for which one class of applications is the calculation of Fourier series, applicable to certain problems in which one must multiply an N-vector by an N X N matrix which can be factored into m sparse matrices.