List questions from fourier-series

Published on 04 Apr 2026 - 15:16

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Double sum and zeta function

Published on 09 Apr 2026 - 4:38

4.1k

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Proof of the Dirichlet–Dini Criterion for Pointwise convergence of Fourier series

Published on 10 Apr 2026 - 17:36

499

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Fourier coefficients intuition?

Published on 09 Apr 2026 - 21:27

120

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Even or odd function. Fourrier coefficients

Published on 19 Jan 2015 - 14:35

234

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Fourier series: Show that $f$ is a trigonometric polynomial

Published on 19 Jan 2015 - 18:01

58

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Fourier series: $\lim_{n\to\pm\infty} n^p \hat{f}(n) = 0$

Published on 19 Jan 2015 - 21:07

1000

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Example of continuous function whose Fourier series doesn't converge on an uncountable dense set.

Published on 11 Apr 2026 - 8:32

214

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How to find $ \sum_{k=0}^\infty \frac{(-1)^k}{(2k+1)^2}$?

Published on 25 Mar 2026 - 4:00

1.5k

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Discrete fourier transfomation and harmonics

Published on 21 Jan 2015 - 12:00

73

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Fourier series question - represent $x$ as a series of $\cos$

Published on 11 Apr 2026 - 9:41

166

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How can I solve this differential equation with fourier series?

Published on 09 Apr 2026 - 16:28

38.4k

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Can a non-periodic function have a Fourier series?

Published on 10 Apr 2026 - 13:00

83

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Finding limit under integral

Published on 09 Apr 2026 - 16:14

30

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Does this reasoning about fourier analysis make sense?

Published on 11 Apr 2026 - 10:35

List Question

fft phase plot of pure sine function, why so messy?

Double sum and zeta function

Proof of the Dirichlet–Dini Criterion for Pointwise convergence of Fourier series

Fourier coefficients intuition?

Even or odd function. Fourrier coefficients

Fourier series: Show that $f$ is a trigonometric polynomial

Fourier series: $\lim_{n\to\pm\infty} n^p \hat{f}(n) = 0$

Example of continuous function whose Fourier series doesn't converge on an uncountable dense set.

How to find $ \sum_{k=0}^\infty \frac{(-1)^k}{(2k+1)^2}$?

Discrete fourier transfomation and harmonics

Fourier series question - represent $x$ as a series of $\cos$

How can I solve this differential equation with fourier series?

Can a non-periodic function have a Fourier series?

Finding limit under integral

Does this reasoning about fourier analysis make sense?

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