Question

Multi-index notation for partial derivatives

score 674 · Answer 1 · 2022-07-14 18:52:03

674

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Multi-index notation for partial derivatives

Published on 14 Jul 2022 - 18:52

score 51 · Answer 2 · 2026-03-26 17:27:48

51

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Flattened Sparse Matrix vs Function Notation For Research Papers

Published on 26 Mar 2026 - 17:27

score 37 · Answer 3 · 2022-08-20 08:58:39

37

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How To Bind Variable Under Summation Sign

Published on 20 Aug 2022 - 8:58

score 65 · Answer 4 · 2026-03-26 09:44:53

65

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Could someone explain this, brackets containing lines notation?

Published on 26 Mar 2026 - 9:44

score 34 · Answer 5 · 2022-09-06 14:27:28

34

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Summation with condition

Published on 06 Sep 2022 - 14:27

score 389 · Answer 6 · 2026-03-26 14:17:08

389

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Abstract Index Notation Inconsistency (Technical - Answer in the Question)

Published on 26 Mar 2026 - 14:17

score 59 · Answer 7 · 2022-09-17 17:34:13

59

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Meaning of $x^{\beta}D^{\alpha}$ (multi-index notation)

Published on 17 Sep 2022 - 17:34

score 84 · Answer 8 · 2022-09-20 19:31:12

84

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Indexed Sets, a notation question

Published on 20 Sep 2022 - 19:31

score 46 · Answer 9 · 2022-09-24 09:50:21

46

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Proving $\frac{dr}{dx_i}$=$\frac{x_i}{r}$ in Index Notation

Published on 24 Sep 2022 - 9:50

score 56 · Answer 10 · 2022-10-12 08:04:04

56

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How to distinguish between eigenvalues listed with or without multiplicity

Published on 12 Oct 2022 - 8:04

score 175 · Answer 11 · 2026-03-25 17:42:16

175

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Alternate multinomial theorem for $\frac{d^n}{dx^n}\prod\limits_{k=1}^m f_k(x)$ without $\sum\limits_{k_1+\dots+k_m=n}$ nor Kronecker delta.

Published on 25 Mar 2026 - 17:42

score 78 · Answer 12 · 2022-10-14 16:28:52

78

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Prove that $(\mathbf{1}\times\textbf{u})\cdot\mathbf{v}=\mathbf{u}\cdot(\mathbf{1}\times\textbf{v})=\textbf{u}\times\textbf{v} $

Published on 14 Oct 2022 - 16:28

score 101 · Answer 13 · 2022-10-16 19:26:28

101

Views

Notation for summing over all cyclic permutations of three indices

Published on 16 Oct 2022 - 19:26

score 37 · Answer 14 · 2026-03-25 19:10:23

37

Views

Why $a_i b_m c_n\left(\delta_{m k} \delta_{n i}-\delta_{m i} \delta_{n k}\right) \mathbf{e}_k=a_n b_m c_n \mathbf{e}_m-a_m b_m c_n \mathbf{e}_n$?

Published on 25 Mar 2026 - 19:10

score 32 · Answer 15 · 2022-10-18 14:34:22

32

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Notation for elements of a vector in English language

Published on 18 Oct 2022 - 14:34

List Question

Multi-index notation for partial derivatives

Flattened Sparse Matrix vs Function Notation For Research Papers

How To Bind Variable Under Summation Sign

Could someone explain this, brackets containing lines notation?

Summation with condition

Abstract Index Notation Inconsistency (Technical - Answer in the Question)

Meaning of $x^{\beta}D^{\alpha}$ (multi-index notation)

Indexed Sets, a notation question

Proving $\frac{dr}{dx_i}$=$\frac{x_i}{r}$ in Index Notation

How to distinguish between eigenvalues listed with or without multiplicity

Alternate multinomial theorem for $\frac{d^n}{dx^n}\prod\limits_{k=1}^m f_k(x)$ without $\sum\limits_{k_1+\dots+k_m=n}$ nor Kronecker delta.

Prove that $(\mathbf{1}\times\textbf{u})\cdot\mathbf{v}=\mathbf{u}\cdot(\mathbf{1}\times\textbf{v})=\textbf{u}\times\textbf{v} $

Notation for summing over all cyclic permutations of three indices

Why $a_i b_m c_n\left(\delta_{m k} \delta_{n i}-\delta_{m i} \delta_{n k}\right) \mathbf{e}_k=a_n b_m c_n \mathbf{e}_m-a_m b_m c_n \mathbf{e}_n$?

Notation for elements of a vector in English language

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