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A new procedure is presented for calculating the complex, discrete Fourier transform of real-valued time series. This procedure is described for an example where the number of points in the series is an integral power of two. This algorithm preserves the order and symmetry of the Cooley-Tukey fast Fourier transform algorithm while effecting the two-to-one… (More)
After describing, applying, comparing, and evaluating four major methodologies, this guided tour concludes with an interim procedure for use until the "right" method appears.
This tutorial considers the structure and construction of reliable software. By way of introduction, several of the structured programming and software engineering techniques are classified into three groups; those which impact primarily on the program structure, the development process, and the development support tools. Structural Analysis Concepts are… (More)
We describe why these papers were chosen, and categorize them in terms of major contribution, underlying model of the software life-cycle, and applicability to various types of system.
This proposal seeks to evaluate the effects of various design methodologies on the development and maintenance of computer systems. More specifically, an experiment is proposed to test the hypothesis that the cost of making changes to computer systems is influenced by the application area of the system and by the design methodology employed in its… (More)