Question

Are $n$ vectors are orthogonal if performing the inner product of all $n$ vectors at once yields zero?

score 87 · Answer 1 · 2026-04-13 23:11:11

87

Views

Are $n$ vectors are orthogonal if performing the inner product of all $n$ vectors at once yields zero?

Published on 13 Apr 2026 - 23:11

score 42 · Answer 2 · 2026-04-11 14:12:19

42

Views

On a certain sphere-packing problem

Published on 11 Apr 2026 - 14:12

score 185 · Answer 3 · 2026-04-13 16:57:16

185

Views

Bound for the sum of vectors in $\mathbb{R}^n$

Published on 13 Apr 2026 - 16:57

score 76 · Answer 4 · 2026-03-26 14:42:01

76

Views

Stokes Theorem: conceptual question about the normal vector and the flux

Published on 26 Mar 2026 - 14:42

score 688 · Answer 5 · 2026-04-16 12:39:09

688

Views

Differences between Vector magnitude and distance vector

Published on 16 Apr 2026 - 12:39

score 126 · Answer 6 · 2026-03-25 09:28:24

126

Views

Calculate times of full moon and new moon (Parallel vectors?)

Published on 25 Mar 2026 - 9:28

score 89 · Answer 7 · 2026-04-14 16:39:36

89

Views

value of $\vec{AC}\cdot \vec{BD}$

Published on 14 Apr 2026 - 16:39

score 16 · Answer 8 · 2026-04-11 22:05:49

16

Views

How to compute non-repeatable vertices for a Cube

Published on 11 Apr 2026 - 22:05

score 753 · Answer 9 · 2026-04-15 11:05:46

753

Views

Multiplication by centering matrix

Published on 15 Apr 2026 - 11:05

score 43 · Answer 10 · 2026-04-14 07:58:20

43

Views

Vector projection onto axis in PCA sequential algorithm

Published on 14 Apr 2026 - 7:58

score 44 · Answer 11 · 2026-04-12 15:21:34

44

Views

Show that $\nabla(v\cdot A) - (v\cdot \nabla)A = v \times (\nabla \times A)$

Published on 12 Apr 2026 - 15:21

score 89 · Answer 12 · 2026-04-12 12:32:18

89

Views

Airplane velocity matrix

Published on 12 Apr 2026 - 12:32

score 129 · Answer 13 · 2026-04-14 12:15:12

129

Views

Find the $x$ and $y$ values that satisfy the constrained optimisation problem.

Published on 14 Apr 2026 - 12:15

score 32 · Answer 14 · 2026-04-16 15:47:53

32

Views

If $a$ and $b$ are non-collinear, and $z-a$ and $b$ are collinear, and $z-b$ and $a$ are collinear, then do we have $a+b=z$?

Published on 16 Apr 2026 - 15:47

score 234 · Answer 15 · 2026-03-25 19:03:28

234

Views

Derivative d/dx of ||A*sigmoid(x)||^2,

Published on 25 Mar 2026 - 19:03

List Question

Are $n$ vectors are orthogonal if performing the inner product of all $n$ vectors at once yields zero?

On a certain sphere-packing problem

Bound for the sum of vectors in $\mathbb{R}^n$

Stokes Theorem: conceptual question about the normal vector and the flux

Differences between Vector magnitude and distance vector

Calculate times of full moon and new moon (Parallel vectors?)

value of $\vec{AC}\cdot \vec{BD}$

How to compute non-repeatable vertices for a Cube

Multiplication by centering matrix

Vector projection onto axis in PCA sequential algorithm

Show that $\nabla(v\cdot A) - (v\cdot \nabla)A = v \times (\nabla \times A)$

Airplane velocity matrix

Find the $x$ and $y$ values that satisfy the constrained optimisation problem.

If $a$ and $b$ are non-collinear, and $z-a$ and $b$ are collinear, and $z-b$ and $a$ are collinear, then do we have $a+b=z$?

Derivative d/dx of ||A*sigmoid(x)||^2,

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