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Two questions on Fourier transform and inverse Fourier transform

score 218 · Answer 1 · 2026-04-12 23:39:37

218

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Two questions on Fourier transform and inverse Fourier transform

Published on 12 Apr 2026 - 23:39

score 49 · Answer 2 · 2026-04-14 20:04:57

49

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

Published on 14 Apr 2026 - 20:04

score 108 · Answer 3 · 2026-04-25 03:37:01

108

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The Laplace transform resolves a function into its moments.

Published on 25 Apr 2026 - 3:37

score 201 · Answer 4 · 2026-04-13 20:31:15

201

Views

Why don't we divide by N and multiply by 2 when we reconstruct a signal using discrete fourier transform?

Published on 13 Apr 2026 - 20:31

score 33 · Answer 5 · 2026-04-09 03:41:50

33

Views

Ambiguity regarding a fourier transformation

Published on 09 Apr 2026 - 3:41

score 231 · Answer 6 · 2026-04-13 11:10:10

231

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why do we get a zero coefficient for frequencies not in the sound-wave using Fourier transform?

Published on 13 Apr 2026 - 11:10

score 73 · Answer 7 · 2026-04-16 05:37:10

73

Views

$\int_{\mathbb{R}}x^2e^{-2\pi i wx}dx$ exists for no value of $w$.

Published on 16 Apr 2026 - 5:37

score 63 · Answer 8 · 2026-04-11 05:24:09

63

Views

An infinitesimal generator of fractional derivatives and integrals

Published on 11 Apr 2026 - 5:24

score 78 · Answer 9 · 2026-04-16 07:41:19

78

Views

Prove that the values of the random vector $\vec{Y}$ are uncorrelated

Published on 16 Apr 2026 - 7:41

score 1.6k · Answer 10 · 2026-03-25 13:57:03

1.6k

Views

What is the discrete analogue of the Fourier transform of the delta function, and in what sense does it hold?

Published on 25 Mar 2026 - 13:57

score 154 · Answer 11 · 2026-04-15 19:30:14

154

Views

Dot product between position vector and wavenumber vector

Published on 15 Apr 2026 - 19:30

score 457 · Answer 12 · 2026-04-09 23:23:02

457

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Fourier transform of cos(x)

Published on 09 Apr 2026 - 23:23

score 25 · Answer 13 · 2026-04-13 08:02:13

25

Views

Transformation and its inverse transformation; when we can define inverse transformation?

Published on 13 Apr 2026 - 8:02

score 53 · Answer 14 · 2026-04-10 20:17:00

53

Views

Recovering an integral from a Fourier transform

Published on 10 Apr 2026 - 20:17

score 65 · Answer 15 · 2026-04-13 14:17:52

65

Views

Multiresolution analysis, change of integral and summation and convergence a.e.

Published on 13 Apr 2026 - 14:17

List Question

Two questions on Fourier transform and inverse Fourier transform

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

The Laplace transform resolves a function into its moments.

Why don't we divide by N and multiply by 2 when we reconstruct a signal using discrete fourier transform?

Ambiguity regarding a fourier transformation

why do we get a zero coefficient for frequencies not in the sound-wave using Fourier transform?

$\int_{\mathbb{R}}x^2e^{-2\pi i wx}dx$ exists for no value of $w$.

An infinitesimal generator of fractional derivatives and integrals

Prove that the values of the random vector $\vec{Y}$ are uncorrelated

What is the discrete analogue of the Fourier transform of the delta function, and in what sense does it hold?

Dot product between position vector and wavenumber vector

Fourier transform of cos(x)

Transformation and its inverse transformation; when we can define inverse transformation?

Recovering an integral from a Fourier transform

Multiresolution analysis, change of integral and summation and convergence a.e.

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