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Product of sums which equal to sum of product

score 158 · Answer 1 · 2026-03-27 17:09:39

158

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Product of sums which equal to sum of product

Published on 27 Mar 2026 - 17:09

score 66 · Answer 2 · 2026-03-26 11:03:35

66

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Converting equation of summations to matrix operations

Published on 26 Mar 2026 - 11:03

score 76 · Answer 3 · 2026-03-26 01:16:06

76

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Finding amplitude of Fourier coefficient

Published on 26 Mar 2026 - 1:16

score 32 · Answer 4 · 2026-03-25 01:21:24

32

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Method of Differences: unable to re-write expression in usable form

Published on 25 Mar 2026 - 1:21

score 267 · Answer 5 · 2026-03-26 01:34:40

267

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What is integer part of $\sum_{j=2}^{100}\frac{1}{\sqrt{j}}$?

Published on 26 Mar 2026 - 1:34

score 80 · Answer 6 · 2026-03-25 09:34:05

80

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what does the following equation represent?

Published on 25 Mar 2026 - 9:34

score 362 · Answer 7 · 2018-04-18 16:46:48

362

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Finite sum $\sum_{k=1}^{p-1} \frac{1-\cos\left(\frac{2\pi k r}{p}\right)}{1-\cos\left(\frac{2\pi k s}{p}\right)}$ for $\gcd(p,rs)=1$.

Published on 18 Apr 2018 - 16:46

score 236 · Answer 8 · 2018-04-19 06:20:54

236

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How to calculate sum over set of vectors $\sum\limits_{\vec q\in E}f(\vec q)$?

Published on 19 Apr 2018 - 6:20

score 2.9k · Answer 9 · 2018-04-19 06:54:40

2.9k

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Sum of minima is at most minimum of sum

Published on 19 Apr 2018 - 6:54

score 332 · Answer 10 · 2018-04-19 08:19:52

Find the sum of the following for any positive integer n where $\langle n \rangle$ denotes the integer nearest to $\sqrt{n}$

score 989 · Answer 11 · 2026-03-25 11:21:27

989

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Positive and negative portions of conditionally convergent series

Published on 25 Mar 2026 - 11:21

score 209 · Answer 12 · 2026-03-20 01:28:11

209

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Catalan Numbers and Geometric Series Combo

Published on 20 Mar 2026 - 1:28

score 85 · Answer 13 · 2018-04-20 01:04:06

85

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Why is $\sum\limits_{n=N+1}^{\infty} \frac {1}{2^n!} < \sum\limits_{n=(N+1)!}^{\infty} \frac {1}{2^n} = \frac{1}{2^{(N+1)!-1}}$

Published on 20 Apr 2018 - 1:04

score 37 · Answer 14 · 2026-03-25 10:56:55

37

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What the technical term for factors of a number (via summation)?

Published on 25 Mar 2026 - 10:56

score 34 · Answer 15 · 2018-04-20 06:31:25

34

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Characterising when a power of a convex sum is a convex sum with the same weights

Published on 20 Apr 2018 - 6:31

List Question

Product of sums which equal to sum of product

Converting equation of summations to matrix operations

Finding amplitude of Fourier coefficient

Method of Differences: unable to re-write expression in usable form

What is integer part of $\sum_{j=2}^{100}\frac{1}{\sqrt{j}}$?

what does the following equation represent?

Finite sum $\sum_{k=1}^{p-1} \frac{1-\cos\left(\frac{2\pi k r}{p}\right)}{1-\cos\left(\frac{2\pi k s}{p}\right)}$ for $\gcd(p,rs)=1$.

How to calculate sum over set of vectors $\sum\limits_{\vec q\in E}f(\vec q)$?

Sum of minima is at most minimum of sum

Find the sum of the following for any positive integer n where $\langle n \rangle$ denotes the integer nearest to $\sqrt{n}$

Positive and negative portions of conditionally convergent series

Catalan Numbers and Geometric Series Combo

Why is $\sum\limits_{n=N+1}^{\infty} \frac {1}{2^n!} < \sum\limits_{n=(N+1)!}^{\infty} \frac {1}{2^n} = \frac{1}{2^{(N+1)!-1}}$

What the technical term for factors of a number (via summation)?

Characterising when a power of a convex sum is a convex sum with the same weights

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