Question

Dot product of a matrix columns with vector to show no solutions to $A\cdot x = b$

score 414 · Answer 1 · 2018-03-13 19:03:59

414

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Dot product of a matrix columns with vector to show no solutions to $A\cdot x = b$

Published on 13 Mar 2018 - 19:03

score 267 · Answer 2 · 2026-03-27 14:08:58

267

Views

Linear Transformation of line to hyperbola

Published on 27 Mar 2026 - 14:08

score 5.9k · Answer 3 · 2018-03-13 19:38:13

5.9k

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How is dimension of a span of a set of vectors related to the number of vectors in the set?

Published on 13 Mar 2018 - 19:38

score 239 · Answer 4 · 2026-04-01 05:19:19

239

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$\operatorname{dim}V^G = \operatorname{dim}(V^\ast)^G$, or $G$ linearly reductive implies $V^G$ dual to $(V^\ast)^G$

Published on 01 Apr 2026 - 5:19

score 1.6k · Answer 5 · 2026-03-26 17:35:07

1.6k

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basis of span with functions

Published on 26 Mar 2026 - 17:35

score 254 · Answer 6 · 2026-04-01 06:04:11

254

Views

about the maximum of a dot product

Published on 01 Apr 2026 - 6:04

score 49 · Answer 7 · 2018-03-13 20:49:23

49

Views

Linear equation system with exactly $n$ solutions for $n>1$

Published on 13 Mar 2018 - 20:49

score 240 · Answer 8 · 2026-03-28 04:34:29

240

Views

Let $T:V → V$ be a linear transformation where $V$ is finite dimensional.

Published on 28 Mar 2026 - 4:34

score 43 · Answer 9 · 2026-03-26 12:04:18

43

Views

Proof for determinants

Published on 26 Mar 2026 - 12:04

score 97 · Answer 10 · 2026-04-01 10:02:34

97

Views

Nonnegativity condition for equality within Triangle Inequality

Published on 01 Apr 2026 - 10:02

score 85 · Answer 11 · 2026-03-27 09:41:04

85

Views

A question about a vector operation

Published on 27 Mar 2026 - 9:41

score 158 · Answer 12 · 2026-04-06 04:18:47

158

Views

$A$ is complex matrix and $A^3=A$. Show that $rk(A)=tr(A^2)$

Published on 06 Apr 2026 - 4:18

score 17 · Answer 13 · 2026-03-26 17:29:23

17

Views

Subspace of Vector Space Given

Published on 26 Mar 2026 - 17:29

score 1.5k · Answer 14 · 2026-03-24 23:46:05

1.5k

Views

As a high school student, how can I get ahead and teach myself math?

Published on 24 Mar 2026 - 23:46

score 227 · Answer 15 · 2026-03-26 04:50:39

227

Views

When does it not require least square to solve $A × x=b$?

Published on 26 Mar 2026 - 4:50

List Question

Dot product of a matrix columns with vector to show no solutions to $A\cdot x = b$

Linear Transformation of line to hyperbola

How is dimension of a span of a set of vectors related to the number of vectors in the set?

$\operatorname{dim}V^G = \operatorname{dim}(V^\ast)^G$, or $G$ linearly reductive implies $V^G$ dual to $(V^\ast)^G$

basis of span with functions

about the maximum of a dot product

Linear equation system with exactly $n$ solutions for $n>1$

Let $T:V → V$ be a linear transformation where $V$ is finite dimensional.

Proof for determinants

Nonnegativity condition for equality within Triangle Inequality

A question about a vector operation

$A$ is complex matrix and $A^3=A$. Show that $rk(A)=tr(A^2)$

Subspace of Vector Space Given

As a high school student, how can I get ahead and teach myself math?

When does it not require least square to solve $A × x=b$?

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