Question

Fourier series - unsure if I'm on the right track

score 49 · Answer 1 · 2026-04-13 12:01:25

49

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Fourier series - unsure if I'm on the right track

Published on 13 Apr 2026 - 12:01

score 35 · Answer 2 · 2026-04-10 07:02:52

35

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Fourier complex exponential series expansion

Published on 10 Apr 2026 - 7:02

score 121 · Answer 3 · 2026-04-09 13:38:21

121

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Evaluate in close form $\sum_{{n}=\mathbf{1}}^{\infty} \frac{\cos (\boldsymbol{\eta} \boldsymbol{n})}{\boldsymbol{n}^{2}+\boldsymbol{b}^{2}}$

Published on 09 Apr 2026 - 13:38

score 63 · Answer 4 · 2026-04-13 02:45:09

63

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Why do this series converge to 2 different values?

Published on 13 Apr 2026 - 2:45

score 344 · Answer 5 · 2026-04-12 00:54:45

344

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Why does the Discrete Fourier transform involve the $nth$ data in the transform?

Published on 12 Apr 2026 - 0:54

score 16 · Answer 6 · 2026-04-18 11:50:28

16

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Cost function calculating best coefficient why differentiate then integrate to equal zero

Published on 18 Apr 2026 - 11:50

score 95 · Answer 7 · 2026-04-13 09:10:59

95

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How do I find the sum of a Fourier series around x=0?

Published on 13 Apr 2026 - 9:10

score 52 · Answer 8 · 2026-04-16 07:29:42

52

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Apply Lipschitz condition to prove a condition on the coefficients of the exponential Fourier series of f

Published on 16 Apr 2026 - 7:29

score 70 · Answer 9 · 2026-04-14 13:24:51

70

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Summability of Fourier series at Lebesgue point

Published on 14 Apr 2026 - 13:24

score 29 · Answer 10 · 2026-04-15 13:16:21

29

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Show $\sigma_n(x)=\frac{c_0}{2}+\sum_{k=1}^{n-1}(c_k\cdot \cos(kx)+d_k\cdot \sin(kx))$ holds for some $c_k, d_k \in C$

Published on 15 Apr 2026 - 13:16

score 142 · Answer 11 · 2026-04-09 15:24:53

142

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Obtain the $N$-point IDFT of $X(k)=\frac{3}{5-4 \cos \left(2 \pi \frac{k}{N}\right)}$

Published on 09 Apr 2026 - 15:24

score 367 · Answer 12 · 2026-05-05 23:23:12

367

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Convergence of partial sums to Fourier series?

Published on 05 May 2026 - 23:23

score 76 · Answer 13 · 2026-04-09 10:21:47

76

Views

Is it a well-known sequence of polynomials?

Published on 09 Apr 2026 - 10:21

score 293 · Answer 14 · 2026-04-13 10:28:54

293

Views

Expand the function $f (x)=\sin(\frac{3}{x})$ in Fourier series on the interval $[0,10]$

Published on 13 Apr 2026 - 10:28

score 300 · Answer 15 · 2026-04-13 13:52:04

300

Views

How fast decrease the Fourier coefficients

Published on 13 Apr 2026 - 13:52

List Question

Fourier series - unsure if I'm on the right track

Fourier complex exponential series expansion

Evaluate in close form $\sum_{{n}=\mathbf{1}}^{\infty} \frac{\cos (\boldsymbol{\eta} \boldsymbol{n})}{\boldsymbol{n}^{2}+\boldsymbol{b}^{2}}$

Why do this series converge to 2 different values?

Why does the Discrete Fourier transform involve the $nth$ data in the transform?

Cost function calculating best coefficient why differentiate then integrate to equal zero

How do I find the sum of a Fourier series around x=0?

Apply Lipschitz condition to prove a condition on the coefficients of the exponential Fourier series of f

Summability of Fourier series at Lebesgue point

Show $\sigma_n(x)=\frac{c_0}{2}+\sum_{k=1}^{n-1}(c_k\cdot \cos(kx)+d_k\cdot \sin(kx))$ holds for some $c_k, d_k \in C$

Obtain the $N$-point IDFT of $X(k)=\frac{3}{5-4 \cos \left(2 \pi \frac{k}{N}\right)}$

Convergence of partial sums to Fourier series?

Is it a well-known sequence of polynomials?

Expand the function $f (x)=\sin(\frac{3}{x})$ in Fourier series on the interval $[0,10]$

How fast decrease the Fourier coefficients

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