List questions from fast-fourier-transform

Published on 23 Nov 2021 - 16:46

390

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Factorization in Fast Fourier Transform

Published on 25 Nov 2021 - 18:34

513

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Why does splitting a polynomial into even and odd degree terms results in polynomials taking as input $x^2$?

Published on 29 Nov 2021 - 14:40

13

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FFT result relationship when padding with different amount of zeros?

Published on 28 Feb 2026 - 1:15

46

Views

What is the relation between the input and output coordinates of a Discrete Fourier Transform?

Published on 30 Dec 2021 - 9:25

29

Views

Convolution of zero-padded DFT

Published on 13 Jan 2022 - 19:25

791

Views

Solving linear system $Ax=b$ via FFT

Published on 25 Mar 2026 - 15:45

76

Views

How to sum a function using its DFT?

Published on 23 Jan 2022 - 21:47

163

Views

Convolution integral over non-uniform grids

Published on 30 Jan 2022 - 12:49

35

Views

Functions with equivalent Fourier coefficients

Published on 13 Feb 2022 - 16:48

44

Views

2D Fourier transform of $e^{-a(\textbf{r}-\textbf{r}')}/| \textbf{r}-\textbf{r}'| $

Published on 15 Feb 2022 - 1:22

139

Views

Is the Fast Fourier Transform associative?

Published on 15 Feb 2022 - 15:43

125

Views

Accurate way to calculate convolution integrals in arbitrary grids

Published on 21 Feb 2022 - 11:02

323

Views

Does it make sense to use a FFT to describe a time series of "spikes"?

Published on 25 Feb 2022 - 14:33

32

Views

Finding the resolution of the discrete Fourier transform of an image

Published on 28 Feb 2022 - 15:41

List Question

Binary polynomial evaluation

Factorization in Fast Fourier Transform

Why does splitting a polynomial into even and odd degree terms results in polynomials taking as input $x^2$?

FFT result relationship when padding with different amount of zeros?

What is the relation between the input and output coordinates of a Discrete Fourier Transform?

Convolution of zero-padded DFT

Solving linear system $Ax=b$ via FFT

How to sum a function using its DFT?

Convolution integral over non-uniform grids

Functions with equivalent Fourier coefficients

2D Fourier transform of $e^{-a(\textbf{r}-\textbf{r}')}/| \textbf{r}-\textbf{r}'| $

Is the Fast Fourier Transform associative?

Accurate way to calculate convolution integrals in arbitrary grids

Does it make sense to use a FFT to describe a time series of "spikes"?

Finding the resolution of the discrete Fourier transform of an image

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