List questions from trigonometric-series

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Another way to express $\text{cis } 75^\circ + \text{cis } 83^\circ + \text{cis } 91^\circ + \dots + \text{cis } 147^\circ$

Published on 15 Jan 2017 - 2:41

4.9k

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Bernoulli numbers, taylor series expansion of tan x

Published on 26 Mar 2026 - 14:22

759

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Sum of odd powers of Sin

Published on 17 Jan 2017 - 19:09

90

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Why $\tan x$ is not infinity at all the points > $\frac{\pi}{2}$

Published on 03 Feb 2017 - 4:10

566

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Sum of the squares of the sides of a triangle

Published on 11 Feb 2017 - 15:08

320

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Symmetry in an almost periodic function

Published on 22 Mar 2026 - 10:13

102

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everywhere convergent trigonometric series

Published on 13 Feb 2017 - 16:42

206

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Expressing $\cos(\sqrt{x^2+y^2})$ in terms of $\cos x$ and $\sin x$

Published on 14 Feb 2017 - 5:07

183

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Sum of cosines with different $\omega$

Published on 16 Feb 2017 - 9:53

82

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How to convert irregularly sampled data into regularly sampled data

Published on 16 Feb 2017 - 12:04

207

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Find $\frac{\sum_\limits{k=0}^{6}\csc^2\left(x+\frac{k\pi}{7}\right)}{7\csc^2(7x)}$

Published on 21 Feb 2017 - 13:58

152

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Basic Fourier analysis - Summability kernels over $\mathbb{R}$

Published on 01 Mar 2017 - 6:40

26

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How to prove this $\sum_{n=0}^{N-1}a(n)\sin{[(\tau-n)x]}=0$

Published on 05 Mar 2017 - 14:57

985

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Do trigonometric polynomials form an algebra

Published on 09 Mar 2017 - 13:24

297

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A finite series of sine function

Published on 10 Mar 2017 - 6:50

List Question

Another way to express $\text{cis } 75^\circ + \text{cis } 83^\circ + \text{cis } 91^\circ + \dots + \text{cis } 147^\circ$

Bernoulli numbers, taylor series expansion of tan x

Sum of odd powers of Sin

Why $\tan x$ is not infinity at all the points > $\frac{\pi}{2}$

Sum of the squares of the sides of a triangle

Symmetry in an almost periodic function

everywhere convergent trigonometric series

Expressing $\cos(\sqrt{x^2+y^2})$ in terms of $\cos x$ and $\sin x$

Sum of cosines with different $\omega$

How to convert irregularly sampled data into regularly sampled data

Find $\frac{\sum_\limits{k=0}^{6}\csc^2\left(x+\frac{k\pi}{7}\right)}{7\csc^2(7x)}$

Basic Fourier analysis - Summability kernels over $\mathbb{R}$

How to prove this $\sum_{n=0}^{N-1}a(n)\sin{[(\tau-n)x]}=0$

Do trigonometric polynomials form an algebra

A finite series of sine function

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