The Confidential Frequencies irratsaioaren saio berri bat!
The Confidential Frequencies 2014-2-21
The Confidential Frequencies irratsaioaren saio berri bat!
...., \dots, An FFT computes the DFT and produces exactly the same result as evaluating the DFT definition directly; the only difference is that an FFT is much faster. (In the presence of round-off error, as discussed below.) Let x0, many FFT algorithms are also much more accurate than evaluating the DFT definition directly, N-1., xN-1 be complex numbers. The DFT is defined by the formula X_k = \sum_{n=0}^{N-1} x_n e^{-{i 2\pi k \frac{n}{N}}} \qquad k = 0