List questions from derivation-of-formulae

Published on 19 Jun 2023 - 22:15

339

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How to derive: $\sin(x-a)\sin(x+a) = \sin^2(x) - \sin^2(a)?$

Published on 09 Jul 2023 - 22:30

196

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Verification of the generalized polylogarithm formula

Published on 23 Jul 2023 - 11:50

88

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Prove That an Approximation of $\sin(x)$ via Euler's Formula Approaches $\sin(x)$

Published on 28 Aug 2023 - 18:33

57

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Problems when deriving Bernhard Riemann's equation for $\zeta(1-s)$

Published on 14 Sep 2023 - 21:20

60

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Polylogarithm further generalized

Published on 21 Sep 2023 - 10:30

129

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How is the equation for this virtual site derived?

Published on 04 Oct 2023 - 15:25

73

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Why is the Discrete Fourier series a sum from $0$ to $N - 1$?

Published on 15 Oct 2023 - 20:28

68

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Laplacian matrix and its eigenvectors and eigenvalues

Published on 24 Oct 2023 - 0:40

51

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All twin prime averages in the range $[9, 119]$ are of the form $6(5[3(z-x)]_{\pmod 7} + x)$ for some $x \in \{0,2,3\}, z \in \{0,2,3,4,5\}$.

Published on 24 Oct 2023 - 7:19

130

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The ultimate polylogarithm ladder

Published on 28 Oct 2023 - 9:55

172

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How to derive A001187 formula combinatorically

Published on 08 Nov 2023 - 23:14

69

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Fourier Transform In Music

Published on 09 Nov 2023 - 11:46

30

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Trig derivation of $\sin(\alpha_1\cos(\omega t)$ to $\alpha_1\cos(\omega t)$ for $a1\gg 1$?

Published on 10 Nov 2023 - 9:30

17

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Problem with deriving a standard deviation function

Published on 17 Nov 2023 - 14:28

List Question

How to derive zeroth order bessel function as solution to exponential of sin/cos

How to derive: $\sin(x-a)\sin(x+a) = \sin^2(x) - \sin^2(a)?$

Verification of the generalized polylogarithm formula

Prove That an Approximation of $\sin(x)$ via Euler's Formula Approaches $\sin(x)$

Problems when deriving Bernhard Riemann's equation for $\zeta(1-s)$

Polylogarithm further generalized

How is the equation for this virtual site derived?

Why is the Discrete Fourier series a sum from $0$ to $N - 1$?

Laplacian matrix and its eigenvectors and eigenvalues

All twin prime averages in the range $[9, 119]$ are of the form $6(5[3(z-x)]_{\pmod 7} + x)$ for some $x \in \{0,2,3\}, z \in \{0,2,3,4,5\}$.

The ultimate polylogarithm ladder

How to derive A001187 formula combinatorically

Fourier Transform In Music

Trig derivation of $\sin(\alpha_1\cos(\omega t)$ to $\alpha_1\cos(\omega t)$ for $a1\gg 1$?

Problem with deriving a standard deviation function

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