List questions from trigonometric-series

Published on 04 Jul 2015 - 17:35

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trigonometric finite series equals to polynomial function

Published on 09 Jul 2015 - 14:34

131

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Cosine and Sine of Sums

Published on 10 Jul 2015 - 21:49

271

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Which Fourier series are "legal"?

Published on 10 Jul 2015 - 22:36

1.1k

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What are the unknown lengths are angles for the roof?

Published on 13 Jul 2015 - 0:07

83

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Do they have a mistake in this heat equation?

Published on 13 Jul 2015 - 22:34

1.1k

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Is there any trigonometric function that cannot be written as an infinite series?

Published on 16 Jul 2015 - 8:02

57

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When does $-\frac{\pi z}{2}\cot(\pi z)+\frac{1}{2}=0$ where $z$ is a complex variable?

Published on 25 Jul 2015 - 2:04

235

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Values of the sums $\sum\limits_{k=1}^{n}\cos^4(πk/(2n+1))$

Published on 28 Jul 2015 - 11:27

347

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Sine/cosine series

Published on 28 Jul 2015 - 18:22

186

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Computing the limit of a series involving trigonometric identities

Published on 10 Aug 2015 - 14:45

118

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Solving a Complicated Trig Problem

Published on 15 Aug 2015 - 14:26

1.3k

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Fourier series of half of $\sin(\pi x)$

Published on 29 Aug 2015 - 4:13

448

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Is this a good generating function for Sum-of-divisors function?

Published on 31 Aug 2015 - 18:31

67

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How to simplify summation containing trignometric function?

Published on 05 Sep 2015 - 21:14

List Question

Positiveness of partial sums of type $ \psi * D_N $

trigonometric finite series equals to polynomial function

Cosine and Sine of Sums

Which Fourier series are "legal"?

What are the unknown lengths are angles for the roof?

Do they have a mistake in this heat equation?

Is there any trigonometric function that cannot be written as an infinite series?

When does $-\frac{\pi z}{2}\cot(\pi z)+\frac{1}{2}=0$ where $z$ is a complex variable?

Values of the sums $\sum\limits_{k=1}^{n}\cos^4(πk/(2n+1))$

Sine/cosine series

Computing the limit of a series involving trigonometric identities

Solving a Complicated Trig Problem

Fourier series of half of $\sin(\pi x)$

Is this a good generating function for Sum-of-divisors function?

How to simplify summation containing trignometric function?

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