Question

Computing sum of infinite exponential

score 76 · Answer 1 · 2026-04-14 00:44:47

76

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Computing sum of infinite exponential

Published on 14 Apr 2026 - 0:44

score 119 · Answer 2 · 2026-04-14 23:41:50

119

Views

Help in summing: $\sum_{k=m} ^{2m} ~k\cdot ~2^{-k} {k \choose m}$

Published on 14 Apr 2026 - 23:41

score 60 · Answer 3 · 2026-04-08 04:21:28

60

Views

Formulating Sum as Function of n

Published on 08 Apr 2026 - 4:21

score 91 · Answer 4 · 2026-03-27 18:05:07

91

Views

Prove that $\sum_n e^{-iωnT} = \cfrac{2π}{T}\sum_n δ(ω-\cfrac{2πn}{T}) $

Published on 27 Mar 2026 - 18:05

score 87 · Answer 5 · 2026-04-09 19:39:17

87

Views

Rewrite of binomial expression

Published on 09 Apr 2026 - 19:39

score 106 · Answer 6 · 2026-04-11 18:38:43

106

Views

Derivative of distortion/objective function

Published on 11 Apr 2026 - 18:38

score 36 · Answer 7 · 2026-04-12 20:22:54

36

Views

Removing the upper bound for a summation

Published on 12 Apr 2026 - 20:22

score 60 · Answer 8 · 2026-04-13 15:07:10

60

Views

Finite Height and Area Symmetric functions

Published on 13 Apr 2026 - 15:07

score 79 · Answer 9 · 2026-04-16 06:02:37

79

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Develop asymptotic as $N \rightarrow \infty$ of $\sum_{k=1}^{\left\lfloor{N/2}\right\rfloor} \sum_{i=1}^{k} \sum_{d \mid i (2k-i), d > N} 1$

Published on 16 Apr 2026 - 6:02

score 144 · Answer 10 · 2026-04-16 07:04:35

144

Views

Find $\lim\limits_{n \to \infty} \left ( n - \sum\limits_{k = 1} ^ n e ^{\frac{k}{n^2}} \right)$.

Published on 16 Apr 2026 - 7:04

score 179 · Answer 11 · 2026-04-17 15:47:45

179

Views

On the sums $\sum\limits_{i=0}^n\frac{i}{n}\ln(\frac{i}{n}) $ and $\sum\limits_{i=0}^n(-1)^i\frac{i}{n}\ln(\frac{i}{n}) $

Published on 17 Apr 2026 - 15:47

score 30 · Answer 12 · 2026-04-17 17:47:06

30

Views

How to express this function for arbitrary N?

Published on 17 Apr 2026 - 17:47

score 155 · Answer 13 · 2026-04-13 21:13:39

155

Views

Notation: How to condition on specific elements of a vector?

Published on 13 Apr 2026 - 21:13

score 1.2k · Answer 14 · 2026-04-17 00:47:23

1.2k

Views

Solving triple summation in context of nested loops

Published on 17 Apr 2026 - 0:47

score 23 · Answer 15 · 2026-04-17 09:14:41

23

Views

How can $G(x,y)=e^x-e^{-y} $ be written as $G(x_1,\dots,x_n)= F(\sum_{i=1}^n g_i(x_i))$?

Published on 17 Apr 2026 - 9:14

List Question

Computing sum of infinite exponential

Help in summing: $\sum_{k=m} ^{2m} ~k\cdot ~2^{-k} {k \choose m}$

Formulating Sum as Function of n

Prove that $\sum_n e^{-iωnT} = \cfrac{2π}{T}\sum_n δ(ω-\cfrac{2πn}{T}) $

Rewrite of binomial expression

Derivative of distortion/objective function

Removing the upper bound for a summation

Finite Height and Area Symmetric functions

Develop asymptotic as $N \rightarrow \infty$ of $\sum_{k=1}^{\left\lfloor{N/2}\right\rfloor} \sum_{i=1}^{k} \sum_{d \mid i (2k-i), d > N} 1$

Find $\lim\limits_{n \to \infty} \left ( n - \sum\limits_{k = 1} ^ n e ^{\frac{k}{n^2}} \right)$.

On the sums $\sum\limits_{i=0}^n\frac{i}{n}\ln(\frac{i}{n}) $ and $\sum\limits_{i=0}^n(-1)^i\frac{i}{n}\ln(\frac{i}{n}) $

How to express this function for arbitrary N?

Notation: How to condition on specific elements of a vector?

Solving triple summation in context of nested loops

How can $G(x,y)=e^x-e^{-y} $ be written as $G(x_1,\dots,x_n)= F(\sum_{i=1}^n g_i(x_i))$?

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