List questions from fourier-series

Published on 17 Apr 2026 - 15:30

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Can I use separation of variables?

Published on 08 Apr 2026 - 23:35

1.6k

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Derivatives using fft in Matlab

Published on 09 Apr 2026 - 11:14

121

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Fourier series of a fourier series.

Published on 11 Apr 2026 - 8:47

710

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Parseval identity in FFT

Published on 09 Apr 2026 - 11:41

88

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How to find Fourier series for $f = \arctan\left(\frac{\sin(\theta)}{1+\cos(\theta)}\right)$

Published on 15 Apr 2026 - 7:00

1.9k

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Littlewood-Paley decomposition

Published on 11 Apr 2026 - 0:55

1.2k

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Is there a real representation of the Fourier transform?

Published on 21 Apr 2026 - 16:09

24

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How do these two equations below hold?

Published on 11 Apr 2026 - 17:12

52

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How do the equations below follow?

Published on 12 Apr 2026 - 22:55

472

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Fourier Series piecewise

Published on 13 Apr 2026 - 14:56

173

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How is orthonormal basis $\{e^{2πikt}\}_{k=-\infty}^\infty$ with index going to $-\infty$ constructed in $L^2(\Bbb S^1)$?

Published on 15 Apr 2026 - 19:30

387

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Trigonometric series convergent to $0$ a.e.?

Published on 14 Apr 2026 - 14:35

36

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Simple Explanation Involving Fourier Series

Published on 10 Apr 2026 - 14:50

246

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Conceptual question about Fourier series to solve PDE with variable coefficients

Published on 08 Apr 2026 - 19:16

List Question

Why Fourier series is represented in 2 different ways?

Can I use separation of variables?

Derivatives using fft in Matlab

Fourier series of a fourier series.

Parseval identity in FFT

How to find Fourier series for $f = \arctan\left(\frac{\sin(\theta)}{1+\cos(\theta)}\right)$

Littlewood-Paley decomposition

Is there a real representation of the Fourier transform?

How do these two equations below hold?

How do the equations below follow?

Fourier Series piecewise

How is orthonormal basis $\{e^{2πikt}\}_{k=-\infty}^\infty$ with index going to $-\infty$ constructed in $L^2(\Bbb S^1)$?

Trigonometric series convergent to $0$ a.e.?

Simple Explanation Involving Fourier Series

Conceptual question about Fourier series to solve PDE with variable coefficients

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