Question

How many possible set of lines can be perpendicular to a certain lines in 3D ? How does perpendicularity between lines work in 3D?

score 479 · Answer 1 · 2026-03-29 18:32:53

479

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How many possible set of lines can be perpendicular to a certain lines in 3D ? How does perpendicularity between lines work in 3D?

Published on 29 Mar 2026 - 18:32

score 38 · Answer 2 · 2026-03-26 19:37:38

38

Views

How can I interpret the following matrix multiplication?

Published on 26 Mar 2026 - 19:37

score 56 · Answer 3 · 2019-09-06 03:31:04

56

Views

Angle between two vector

Published on 06 Sep 2019 - 3:31

score 165 · Answer 4 · 2019-09-06 08:54:21

Why does a square root of addition of squares of different directions results in the length of the diagonal.

score 79 · Answer 5 · 2026-04-04 09:42:45

Point $G_1$ represents the centroid of $\triangle ABD$ and point $G_2$ represents the centroid of $\triangle ABC$ in the trapezoid $ABCD$ $(AB||CD)$

score 171 · Answer 6 · 2019-09-06 13:23:52

171

Views

How to add vectors and calculate the resultant angle?

Published on 06 Sep 2019 - 13:23

score 486 · Answer 7 · 2019-09-07 03:33:42

486

Views

Hyperplane conversion between vector form and cartesian form

Published on 07 Sep 2019 - 3:33

score 130 · Answer 8 · 2026-03-26 01:01:17

130

Views

Vector (transpose) Matrix addition - Why it could work despite different dimensions (Matlab)

Published on 26 Mar 2026 - 1:01

score 2.1k · Answer 9 · 2026-03-25 23:36:03

2.1k

Views

Changing Side of Vector in Matrix Equation

Published on 25 Mar 2026 - 23:36

score 195 · Answer 10 · 2026-03-27 21:23:04

195

Views

Cross product in 2D by rending k component 0

Published on 27 Mar 2026 - 21:23

score 403 · Answer 11 · 2026-03-29 12:43:13

403

Views

Can any $2\times 2$ matrix transform the unit square?

Published on 29 Mar 2026 - 12:43

score 1.8k · Answer 12 · 2026-03-27 21:19:27

1.8k

Views

Find the dot product of orthogonal unit vectors u, v; and w = au + bv

Published on 27 Mar 2026 - 21:19

score 1.7k · Answer 13 · 2026-03-26 04:27:18

1.7k

Views

Can you cross two cross products with a cross product?

Published on 26 Mar 2026 - 4:27

score 1.7k · Answer 14 · 2026-03-31 20:54:09

1.7k

Views

Is the derivative of the unit normal vector parallel to the tangent vector?

Published on 31 Mar 2026 - 20:54

score 1.4k · Answer 15 · 2019-09-08 08:29:40

1.4k

Views

Vector projection of a vector exactly in the opposite direction to the other vector

Published on 08 Sep 2019 - 8:29

List Question

How many possible set of lines can be perpendicular to a certain lines in 3D ? How does perpendicularity between lines work in 3D?

How can I interpret the following matrix multiplication?

Angle between two vector

Why does a square root of addition of squares of different directions results in the length of the diagonal.

Point $G_1$ represents the centroid of $\triangle ABD$ and point $G_2$ represents the centroid of $\triangle ABC$ in the trapezoid $ABCD$ $(AB||CD)$

How to add vectors and calculate the resultant angle?

Hyperplane conversion between vector form and cartesian form

Vector (transpose) Matrix addition - Why it could work despite different dimensions (Matlab)

Changing Side of Vector in Matrix Equation

Cross product in 2D by rending k component 0

Can any $2\times 2$ matrix transform the unit square?

Find the dot product of orthogonal unit vectors u, v; and w = au + bv

Can you cross two cross products with a cross product?

Is the derivative of the unit normal vector parallel to the tangent vector?

Vector projection of a vector exactly in the opposite direction to the other vector

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