Question

Baby Rudin's proof of Riemann Localization Theorem (8.14)

score 296 · Answer 1 · 2022-01-17 19:31:18

296

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Baby Rudin's proof of Riemann Localization Theorem (8.14)

Published on 17 Jan 2022 - 19:31

score 120 · Answer 2 · 2022-02-07 11:07:02

120

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Fitting a sum of sinusoids to known data

Published on 07 Feb 2022 - 11:07

score 93 · Answer 3 · 2022-02-19 04:31:04

93

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How do you find the roots of a sine series?

Published on 19 Feb 2022 - 4:31

score 106 · Answer 4 · 2022-03-10 14:12:35

106

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Why is the term $(2n+1)$ in the solution angles of sine and also in its taylor sum? Is this coincidence?

Published on 10 Mar 2022 - 14:12

score 88 · Answer 5 · 2022-03-11 03:50:47

88

Views

Proof That $\sin{(bt)} = b\sin{(t)}$?

Published on 11 Mar 2022 - 3:50

score 64 · Answer 6 · 2022-03-11 07:22:34

64

Views

Weighted sum of cos(kx) (weighted Lagrange identities?)

Published on 11 Mar 2022 - 7:22

score 60 · Answer 7 · 2026-03-29 14:25:18

60

Views

How to show $\displaystyle\sum_{j=1}^n \cos\left((k+l)\frac{\pi (j-1/2)}{n}\right) = 0$

Published on 29 Mar 2026 - 14:25

score 44 · Answer 8 · 2022-03-19 11:27:21

44

Views

How to prove that $\sum_{ k= 1}^{N-1} \sin(\frac{k}{N} \pi)^{-2} = (N^2 - 1)/3$?

Published on 19 Mar 2022 - 11:27

score 45 · Answer 9 · 2022-03-28 19:57:43

45

Views

Is it possible to express $\sin(\frac{k\pi}{4})$ as something of the form $(-1)^{f(k)}$?

Published on 28 Mar 2022 - 19:57

score 19 · Answer 10 · 2022-04-25 07:49:43

19

Views

Showing that $R= \frac{1}{n}\sum_{k=1}^n\cos(\theta_k - \overline{\theta})$ given a system of equations

Published on 25 Apr 2022 - 7:49

score 50 · Answer 11 · 2022-04-28 11:41:22

50

Views

Bound on amount of minima of finite Fourier sum

Published on 28 Apr 2022 - 11:41

score 30 · Answer 12 · 2022-05-11 04:56:15

30

Views

Notation for Expresion of Tangent of Summation of Angles

Published on 11 May 2022 - 4:56

score 289 · Answer 13 · 2022-05-11 09:48:11

Proving $\left|\sin x\right|\leq\frac{(2m+1)!}{2^{4m}(m!)^2}\left[\binom{2m}{m} - \sum_{k=1}^{m} \frac{2}{4k^2-1} \binom{2m}{m+k} \cos(2kx) \right]$

score 80 · Answer 14 · 2022-05-14 12:15:33

80

Views

$ \sum_{k=1}^{n} \arctan(k)=? $ Using argument of complex number

Published on 14 May 2022 - 12:15

score 103 · Answer 15 · 2022-05-14 13:02:28

103

Views

Need advice on approximating the sum of a trigonomitric series which (I think) has no analytical solution

Published on 14 May 2022 - 13:02

List Question

Baby Rudin's proof of Riemann Localization Theorem (8.14)

Fitting a sum of sinusoids to known data

How do you find the roots of a sine series?

Why is the term $(2n+1)$ in the solution angles of sine and also in its taylor sum? Is this coincidence?

Proof That $\sin{(bt)} = b\sin{(t)}$?

Weighted sum of cos(kx) (weighted Lagrange identities?)

How to show $\displaystyle\sum_{j=1}^n \cos\left((k+l)\frac{\pi (j-1/2)}{n}\right) = 0$

How to prove that $\sum_{ k= 1}^{N-1} \sin(\frac{k}{N} \pi)^{-2} = (N^2 - 1)/3$?

Is it possible to express $\sin(\frac{k\pi}{4})$ as something of the form $(-1)^{f(k)}$?

Showing that $R= \frac{1}{n}\sum_{k=1}^n\cos(\theta_k - \overline{\theta})$ given a system of equations

Bound on amount of minima of finite Fourier sum

Notation for Expresion of Tangent of Summation of Angles

Proving $\left|\sin x\right|\leq\frac{(2m+1)!}{2^{4m}(m!)^2}\left[\binom{2m}{m} - \sum_{k=1}^{m} \frac{2}{4k^2-1} \binom{2m}{m+k} \cos(2kx) \right]$

$ \sum_{k=1}^{n} \arctan(k)=? $ Using argument of complex number

Need advice on approximating the sum of a trigonomitric series which (I think) has no analytical solution

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