Question

Fourier Transform of $f: \text{Rect} \subset \mathbb{C} \to \mathbb{C}$

score 60 · Answer 1 · 2026-04-14 04:52:15

60

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Fourier Transform of $f: \text{Rect} \subset \mathbb{C} \to \mathbb{C}$

Published on 14 Apr 2026 - 4:52

score 109 · Answer 2 · 2026-04-16 13:21:48

109

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Is $\textrm{span}\{\sin(nx): n \in \mathbb N\}$ a sub-algebra of $C([0,\pi])$?

Published on 16 Apr 2026 - 13:21

score 252 · Answer 3 · 2026-04-13 05:23:15

252

Views

Fourier Series coefficients - How does one separate e^(jwt) from the rest of the answer?

Published on 13 Apr 2026 - 5:23

score 126 · Answer 4 · 2026-04-11 17:22:00

126

Views

Topological isomorphism (homeomorphism) between $C^{\infty}(S^1)$ and $s(\mathbb{Z})$

Published on 11 Apr 2026 - 17:22

score 67 · Answer 5 · 2026-04-12 19:50:23

67

Views

Why must Complex Fourier series be used to find Summation of $1/(n^2+1)$?

Published on 12 Apr 2026 - 19:50

score 107 · Answer 6 · 2026-04-14 17:10:40

107

Views

Can someone confirm this Fourier series from example 3.5 in Alan V. Oppenheim's book?

Published on 14 Apr 2026 - 17:10

score 303 · Answer 7 · 2026-04-13 15:17:54

303

Views

What series expansions of functions other than Taylor/MacLaurin and Fourier exist?

Published on 13 Apr 2026 - 15:17

score 131 · Answer 8 · 2026-04-11 10:03:14

131

Views

What can we say about the higher order derivatives of complex Fourier series?

Published on 11 Apr 2026 - 10:03

score 287 · Answer 9 · 2026-04-13 13:19:53

287

Views

Uniform Dini condition for Fourier series

Published on 13 Apr 2026 - 13:19

score 64 · Answer 10 · 2026-04-11 22:37:29

64

Views

Representation of Fourier transform

Published on 11 Apr 2026 - 22:37

score 82 · Answer 11 · 2026-04-13 12:56:17

82

Views

Evaluating inverse Discrete Time Fourier Transform

Published on 13 Apr 2026 - 12:56

score 1.6k · Answer 12 · 2026-04-15 03:12:26

1.6k

Views

Proof that the trigonometric functions form a basis for $L^2[0, 2\pi]$

Published on 15 Apr 2026 - 3:12

score 45 · Answer 13 · 2026-04-11 01:13:48

45

Views

Question on fourier series expansion

Published on 11 Apr 2026 - 1:13

score 254 · Answer 14 · 2026-04-15 15:23:34

254

Views

Using Fourier Series to prove $\frac\pi4=\sum\limits_{n=1}^\infty\frac{\sin{(2n-1)x}}{2n-1}$ if $0<x<\pi$

Published on 15 Apr 2026 - 15:23

score 344 · Answer 15 · 2026-04-11 08:23:11

344

Views

Why can't we just immediately Fourier Transform the dirac comb? Why do we need to define it's Fourier Series first?

Published on 11 Apr 2026 - 8:23

List Question

Fourier Transform of $f: \text{Rect} \subset \mathbb{C} \to \mathbb{C}$

Is $\textrm{span}\{\sin(nx): n \in \mathbb N\}$ a sub-algebra of $C([0,\pi])$?

Fourier Series coefficients - How does one separate e^(jwt) from the rest of the answer?

Topological isomorphism (homeomorphism) between $C^{\infty}(S^1)$ and $s(\mathbb{Z})$

Why must Complex Fourier series be used to find Summation of $1/(n^2+1)$?

Can someone confirm this Fourier series from example 3.5 in Alan V. Oppenheim's book?

What series expansions of functions other than Taylor/MacLaurin and Fourier exist?

What can we say about the higher order derivatives of complex Fourier series?

Uniform Dini condition for Fourier series

Representation of Fourier transform

Evaluating inverse Discrete Time Fourier Transform

Proof that the trigonometric functions form a basis for $L^2[0, 2\pi]$

Question on fourier series expansion

Using Fourier Series to prove $\frac\pi4=\sum\limits_{n=1}^\infty\frac{\sin{(2n-1)x}}{2n-1}$ if $0<x<\pi$

Why can't we just immediately Fourier Transform the dirac comb? Why do we need to define it's Fourier Series first?

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