Question

Are these two rotation matrices related?

score 81 · Answer 1 · 2013-07-29 02:39:18

81

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Are these two rotation matrices related?

Published on 29 Jul 2013 - 2:39

score 5.5k · Answer 2 · 2013-07-30 14:40:06

5.5k

Views

How to prove this vector identity

Published on 30 Jul 2013 - 14:40

score 62 · Answer 3 · 2013-08-01 13:03:46

62

Views

Help clearing doubt about expansion of $\vec i\times(\vec a\times \vec i)$

Published on 01 Aug 2013 - 13:03

score 894 · Answer 4 · 2013-08-14 18:42:47

894

Views

Multiplication of cross product with Levi-Civita symbol

Published on 14 Aug 2013 - 18:42

score 849 · Answer 5 · 2013-08-20 01:56:03

849

Views

Does this cross-product norm inequality hold?

Published on 20 Aug 2013 - 1:56

score 113 · Answer 6 · 2013-08-22 17:22:19

113

Views

Unbiased estimate of cross-product for unbiased vector

Published on 22 Aug 2013 - 17:22

score 74 · Answer 7 · 2013-08-29 03:48:28

74

Views

If $U \times V$ is a unit vector, $|U| = \sqrt{3}/3, |V| = 2$ and $U\cdot V > 0$, then what is the angle between $U$ and $V$?

Published on 29 Aug 2013 - 3:48

score 108 · Answer 8 · 2013-09-02 18:55:48

Help proving that $\vec{a}\times(\vec{a}\times(\vec{a}\times\vec{b}))\cdot\vec{c} = -\|\vec{a}\|^2\vec{a}\cdot\vec{b}\times\vec{c}$

score 12.4k · Answer 9 · 2013-09-13 23:53:49

12.4k

Views

showing / proving curl identity $\nabla \times \left( \frac{1}{r^2} \hat r \right) = 0$

Published on 13 Sep 2013 - 23:53

score 1.8k · Answer 10 · 2013-09-18 13:39:21

1.8k

Views

on proving bac-cab rule, $\vec{A} \times ( \vec{B} \times \vec{C})= \vec{B} (\vec{A} \cdot\vec{C})- \vec{C}(\vec{A}\cdot\vec{B})$

Published on 18 Sep 2013 - 13:39

score 570 · Answer 11 · 2026-03-28 13:42:09

570

Views

How do I plot a bunch of vectors in Maple and find the difference and cross product between them?

Published on 28 Mar 2026 - 13:42

score 144 · Answer 12 · 2013-10-02 04:09:31

144

Views

Show that angular momentum can be divided into center of mass and internal coordinate

Published on 02 Oct 2013 - 4:09

score 158 · Answer 13 · 2013-10-02 03:48:46

158

Views

Explanation for cross product observation

Published on 02 Oct 2013 - 3:48

score 146 · Answer 14 · 2013-10-05 23:19:56

146

Views

Show that $e^{\theta(s\times)} = I + \sin\theta(s\times) + (1 − \cos \theta)(s\times)^2$

Published on 05 Oct 2013 - 23:19

score 8.7k · Answer 15 · 2026-03-26 06:34:43

8.7k

Views

How come the cross product of two planes is collinear with the direction vector of the line?

Published on 26 Mar 2026 - 6:34

List Question

Are these two rotation matrices related?

How to prove this vector identity

Help clearing doubt about expansion of $\vec i\times(\vec a\times \vec i)$

Multiplication of cross product with Levi-Civita symbol

Does this cross-product norm inequality hold?

Unbiased estimate of cross-product for unbiased vector

If $U \times V$ is a unit vector, $|U| = \sqrt{3}/3, |V| = 2$ and $U\cdot V > 0$, then what is the angle between $U$ and $V$?

Help proving that $\vec{a}\times(\vec{a}\times(\vec{a}\times\vec{b}))\cdot\vec{c} = -\|\vec{a}\|^2\vec{a}\cdot\vec{b}\times\vec{c}$

showing / proving curl identity $\nabla \times \left( \frac{1}{r^2} \hat r \right) = 0$

on proving bac-cab rule, $\vec{A} \times ( \vec{B} \times \vec{C})= \vec{B} (\vec{A} \cdot\vec{C})- \vec{C}(\vec{A}\cdot\vec{B})$

How do I plot a bunch of vectors in Maple and find the difference and cross product between them?

Show that angular momentum can be divided into center of mass and internal coordinate

Explanation for cross product observation

Show that $e^{\theta(s\times)} = I + \sin\theta(s\times) + (1 − \cos \theta)(s\times)^2$

How come the cross product of two planes is collinear with the direction vector of the line?

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