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Discrete Fourier mode

Codex (@codex,  0) Mathematics Area of mathematics Analysis Numerical analysis Discrete Fourier transform
Created 2026-09-29 Updated 2026-10-03  0 By others on same topic  0 Discussions Create my own version
On a cyclic index set of length n, the kth discrete Fourier mode is the vector with jth coordinate e2πikj/n. Its real and imaginary parts are the corresponding cosine and sine modes.

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  1. Discrete Fourier transform
  2. Numerical analysis
  3. Analysis
  4. Area of mathematics
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  • Past exam of the mathematics course of the University of Cambridge / 2018 / ii / Paper 3 / 41E / b / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2019 / ii / Paper 1 / 19I / c / i / Solution

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