Computer Science – Numerical Analysis
Scientific paper
2011-10-27
Computer Science
Numerical Analysis
Scientific paper
Fast Fourier Transform (FFT) is an efficient algorithm to compute the Discrete Fourier Transform (DFT) and its inverse. In this paper, we pay special attention to the description of complex-data FFT. We analyze two common descriptions of FFT and propose a new presentation. Our heuristic description is helpful for students and programmers to grasp the algorithm entirely and deeply.
Cao Zhengjun
Fan Xiao
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