Question

Determining the coefficient of a Fourier series

score 50 · Answer 1 · 2026-04-13 12:40:16

50

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Determining the coefficient of a Fourier series

Published on 13 Apr 2026 - 12:40

score 122 · Answer 2 · 2026-04-09 15:29:31

122

Views

Fourier series of pulse train

Published on 09 Apr 2026 - 15:29

score 329 · Answer 3 · 2026-04-13 05:21:31

329

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What is the DC component of a Fourier Series?

Published on 13 Apr 2026 - 5:21

score 79 · Answer 4 · 2026-04-13 06:05:25

79

Views

$\sum_{n=1}^\infty \frac{\sin nx}{n+1}$ is not continuous at $0$ and $2\pi$?

Published on 13 Apr 2026 - 6:05

score 75 · Answer 5 · 2026-04-10 08:27:51

75

Views

Why is the calculation of Fourier coefficients of Klein's modular function important?

Published on 10 Apr 2026 - 8:27

score 287 · Answer 6 · 2026-04-14 01:48:22

287

Views

Help solving a PDE similar to the heat equation

Published on 14 Apr 2026 - 1:48

score 178 · Answer 7 · 2026-04-09 03:13:48

178

Views

Fourier Series of a $2\pi$-Periodic Function

Published on 09 Apr 2026 - 3:13

score 390 · Answer 8 · 2026-04-13 21:46:16

390

Views

Computing Fourier Series of $f(x) = x(\pi-x)$

Published on 13 Apr 2026 - 21:46

score 501 · Answer 9 · 2026-04-14 22:08:53

501

Views

Using the Riemann-Lebesgue lemma to find the integral of a very oscillating function

Published on 14 Apr 2026 - 22:08

score 26 · Answer 10 · 2026-04-16 02:03:44

26

Views

$\phi =\left \{ \cos\frac{2 n \pi t}{T},\sin\frac{2 n \pi t}{T}: \forall n,m \in \mathbb{Z}>0 \right \}$ in L$[0,T]$

Published on 16 Apr 2026 - 2:03

score 51 · Answer 11 · 2026-04-16 22:40:22

51

Views

Prove $-\int_0^1 u_{xxx}u_x \eta = \int_0^1 (u_{xx})^2\eta - \int_0^1 \frac{1}{2} (u_x)^2 \eta_{xx}$ using Fourier series

Published on 16 Apr 2026 - 22:40

score 19 · Answer 12 · 2026-04-16 22:14:26

19

Views

How to plot fourier-series graph? Was this particular one done correctly? Please see attached image

Published on 16 Apr 2026 - 22:14

score 98 · Answer 13 · 2026-04-15 07:05:20

98

Views

How did Euler obtain these two formulae? Are they correct?

Published on 15 Apr 2026 - 7:05

score 69 · Answer 14 · 2026-04-13 01:04:50

69

Views

Solve Laplace equation for annular region

Published on 13 Apr 2026 - 1:04

score 227 · Answer 15 · 2026-04-17 06:41:58

227

Views

What is the Fourier series of $f(x) = \begin{cases} -2, & -4<x<-2 \\ x, & {-2<x<2} \\ 2, & {2<x<4} \end{cases}$

Published on 17 Apr 2026 - 6:41

List Question

Determining the coefficient of a Fourier series

Fourier series of pulse train

What is the DC component of a Fourier Series?

$\sum_{n=1}^\infty \frac{\sin nx}{n+1}$ is not continuous at $0$ and $2\pi$?

Why is the calculation of Fourier coefficients of Klein's modular function important?

Help solving a PDE similar to the heat equation

Fourier Series of a $2\pi$-Periodic Function

Computing Fourier Series of $f(x) = x(\pi-x)$

Using the Riemann-Lebesgue lemma to find the integral of a very oscillating function

$\phi =\left \{ \cos\frac{2 n \pi t}{T},\sin\frac{2 n \pi t}{T}: \forall n,m \in \mathbb{Z}>0 \right \}$ in L$[0,T]$

Prove $-\int_0^1 u_{xxx}u_x \eta = \int_0^1 (u_{xx})^2\eta - \int_0^1 \frac{1}{2} (u_x)^2 \eta_{xx}$ using Fourier series

How to plot fourier-series graph? Was this particular one done correctly? Please see attached image

How did Euler obtain these two formulae? Are they correct?

Solve Laplace equation for annular region

What is the Fourier series of $f(x) = \begin{cases} -2, & -4<x<-2 \\ x, & {-2<x<2} \\ 2, & {2<x<4} \end{cases}$

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