Question

Show that every rotation in $\mathbb{R^3}$ can be written as the product of two rotations of order 2.

score 1.6k · Answer 1 · 2026-03-29 00:00:01

1.6k

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Show that every rotation in $\mathbb{R^3}$ can be written as the product of two rotations of order 2.

Published on 29 Mar 2026 - 0:00

score 125 · Answer 2 · 2026-03-28 16:19:37

125

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3D Denjoy–Riesz theorem

Published on 28 Mar 2026 - 16:19

score 49 · Answer 3 · 2026-03-28 07:59:31

49

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Visible faces of a polyhedron $P$ on a path of viewpoints on the unit sphere looking at the center of $P$

Published on 28 Mar 2026 - 7:59

score 2.1k · Answer 4 · 2016-03-25 20:00:00

2.1k

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find 3 angles to rotate vector to align with second vector

Published on 25 Mar 2016 - 20:00

score 1.4k · Answer 5 · 2016-03-27 04:39:59

1.4k

Views

Geometrical interpretation of solving a $3 \times 3$ system of equations

Published on 27 Mar 2016 - 4:39

score 5.2k · Answer 6 · 2016-03-27 10:12:11

5.2k

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How many spheres can fit in this box?

Published on 27 Mar 2016 - 10:12

score 52 · Answer 7 · 2026-03-28 07:59:31

52

Views

Given a band of $m$ opaque squares arranged in a circle, can we find a viewpoint from which we see exactly $m/2-1$ squares?

Published on 28 Mar 2026 - 7:59

score 685 · Answer 8 · 2026-03-30 18:18:41

685

Views

Finding angle between y axis in two rotated coordinate systems

Published on 30 Mar 2026 - 18:18

score 3.7k · Answer 9 · 2026-04-02 14:48:55

3.7k

Views

Variance of $3$-dimensional vectors

Published on 02 Apr 2026 - 14:48

score 231 · Answer 10 · 2026-03-28 08:49:08

231

Views

Write the equation $4x^{2}+4z^{2}=5$ in spherical coordinates.

Published on 28 Mar 2026 - 8:49

score 163 · Answer 11 · 2016-03-29 08:39:52

163

Views

How can the angle between any two azimuth dip pairs be found?

Published on 29 Mar 2016 - 8:39

score 277 · Answer 12 · 2026-04-03 20:17:52

277

Views

How to find the amount of degrees to rotate a vector to be 90 degrees another vector?

Published on 03 Apr 2026 - 20:17

score 945 · Answer 13 · 2026-04-03 20:11:59

945

Views

Concatenating two Rotation-Matrices

Published on 03 Apr 2026 - 20:11

score 41 · Answer 14 · 2016-03-30 04:04:05

41

Views

Find third vector with opposite deviation

Published on 30 Mar 2016 - 4:04

score 158 · Answer 15 · 2016-03-30 21:59:50

158

Views

Distance between a point and a 3D figure

Published on 30 Mar 2016 - 21:59

List Question

Show that every rotation in $\mathbb{R^3}$ can be written as the product of two rotations of order 2.

3D Denjoy–Riesz theorem

Visible faces of a polyhedron $P$ on a path of viewpoints on the unit sphere looking at the center of $P$

find 3 angles to rotate vector to align with second vector

Geometrical interpretation of solving a $3 \times 3$ system of equations

How many spheres can fit in this box?

Given a band of $m$ opaque squares arranged in a circle, can we find a viewpoint from which we see exactly $m/2-1$ squares?

Finding angle between y axis in two rotated coordinate systems

Variance of $3$-dimensional vectors

Write the equation $4x^{2}+4z^{2}=5$ in spherical coordinates.

How can the angle between any two azimuth dip pairs be found?

How to find the amount of degrees to rotate a vector to be 90 degrees another vector?

Concatenating two Rotation-Matrices

Find third vector with opposite deviation

Distance between a point and a 3D figure

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