Question

If $x$ is a solution of a linear system $Ax=b$ and $y$ is a vector orthogonal to $x$, is $x+y$ also a solution?

score 447 · Answer 1 · 2026-04-13 21:20:57

447

Views

If $x$ is a solution of a linear system $Ax=b$ and $y$ is a vector orthogonal to $x$, is $x+y$ also a solution?

Published on 13 Apr 2026 - 21:20

score 34 · Answer 2 · 2026-04-12 19:27:06

34

Views

Vectorial calculus

Published on 12 Apr 2026 - 19:27

score 131 · Answer 3 · 2026-04-09 13:20:14

131

Views

Component definition in curvilinear coordinates

Published on 09 Apr 2026 - 13:20

score 137 · Answer 4 · 2026-04-14 10:28:49

137

Views

how to find a vector, perpendicular to the normal of a plane, for which gravity is the strongest?

Published on 14 Apr 2026 - 10:28

score 329 · Answer 5 · 2026-04-17 07:56:55

329

Views

Find the shortest distance between two lines and their coordinates.

Published on 17 Apr 2026 - 7:56

score 54 · Answer 6 · 2026-03-27 04:23:37

54

Views

Help me understand this type of problem ( equation of a plane )

Published on 27 Mar 2026 - 4:23

score 76 · Answer 7 · 2026-04-12 07:31:08

76

Views

Notation for Multiple Scale Expansion

Published on 12 Apr 2026 - 7:31

score 78 · Answer 8 · 2026-04-15 12:18:51

78

Views

Check whether two vectors are parallel or perpendicular or none.

Published on 15 Apr 2026 - 12:18

score 107 · Answer 9 · 2026-04-15 22:09:08

107

Views

Equation of line in the form $ax+by+cz+d=0=a'x+b'y+c'z+d'

Published on 15 Apr 2026 - 22:09

score 364 · Answer 10 · 2026-04-16 00:03:04

364

Views

Normal vector - should be row or column vector?

Published on 16 Apr 2026 - 0:03

score 43 · Answer 11 · 2026-04-15 21:05:07

43

Views

The point X has position vector $s\vec{b} + t\vec{c}$ describe the locus of X when s + t =1

Published on 15 Apr 2026 - 21:05

score 3.9k · Answer 12 · 2026-04-13 12:54:13

3.9k

Views

Taking the dot product in polar coordinates using the metric tensor

Published on 13 Apr 2026 - 12:54

score 192 · Answer 13 · 2026-04-13 13:34:15

192

Views

For which values of $x$ the vectors span a plane in $\mathbb{R}^3$

Published on 13 Apr 2026 - 13:34

score 352 · Answer 14 · 2026-04-12 02:35:09

352

Views

How to prove that a sum of quintuple cross products is equal to zero?

Published on 12 Apr 2026 - 2:35

score 240 · Answer 15 · 2026-04-15 05:42:38

240

Views

Proving vector identities in general

Published on 15 Apr 2026 - 5:42

List Question

If $x$ is a solution of a linear system $Ax=b$ and $y$ is a vector orthogonal to $x$, is $x+y$ also a solution?

Vectorial calculus

Component definition in curvilinear coordinates

how to find a vector, perpendicular to the normal of a plane, for which gravity is the strongest?

Find the shortest distance between two lines and their coordinates.

Help me understand this type of problem ( equation of a plane )

Notation for Multiple Scale Expansion

Check whether two vectors are parallel or perpendicular or none.

Equation of line in the form $ax+by+cz+d=0=a'x+b'y+c'z+d'

Normal vector - should be row or column vector?

The point X has position vector $s\vec{b} + t\vec{c}$ describe the locus of X when s + t =1

Taking the dot product in polar coordinates using the metric tensor

For which values of $x$ the vectors span a plane in $\mathbb{R}^3$

How to prove that a sum of quintuple cross products is equal to zero?

Proving vector identities in general

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