What is the importance of the fast fourier transform

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Reference no: EM131253390

1. Why should the interpolation data abscissae xi in Section 13.2 not include both i = 0 and i = 2l?

2. What is the computational cost (in O terms) of computing the DFT?

3. What is the importance of the fast Fourier transform?

4. What are the roots of unity for m = 16?

5. Describe a divide and conquer approach.

6. When is the DCT preferable over DFT?

Reference no: EM131253390

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