Question

Finding a new basis for the null space of a matrix

score 187 · Answer 1 · 2018-04-22 07:47:32

187

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Finding a new basis for the null space of a matrix

Published on 22 Apr 2018 - 7:47

score 96 · Answer 2 · 2026-04-09 08:04:52

96

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Finding system of equations from solutions

Published on 09 Apr 2026 - 8:04

score 532 · Answer 3 · 2018-04-22 09:11:56

532

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Eigenvalues of $A'A$ where A is an $m\times n$ matrix of rank $m$.

Published on 22 Apr 2018 - 9:11

score 48 · Answer 4 · 2026-03-25 01:35:33

48

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Can we construct a matrix $A$ and $B$ with given eigenvalues such that $A + B$ will have eigenvalues $(c_1, \ldots, c_n)$?

Published on 25 Mar 2026 - 1:35

score 281 · Answer 5 · 2026-03-28 13:41:40

281

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Number of $4 \times 4$ matrices with sum along row or column $0$

Published on 28 Mar 2026 - 13:41

score 153 · Answer 6 · 2026-03-29 03:10:56

153

Views

Eigenvalues of matrix with components near the diagonal?

Published on 29 Mar 2026 - 3:10

score 264 · Answer 7 · 2018-04-22 17:03:49

264

Views

How to find a matrix D such that B + D is a singular matrix.

Published on 22 Apr 2018 - 17:03

score 52 · Answer 8 · 2018-04-22 19:56:23

52

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If matrix $A$ is not symmetric, can I determine the sign of $x^T A x$?

Published on 22 Apr 2018 - 19:56

score 1.2k · Answer 9 · 2026-04-08 22:24:18

1.2k

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Is Schur complement better conditioned than the original matrix?

Published on 08 Apr 2026 - 22:24

score 1.1k · Answer 10 · 2026-03-25 03:03:11

1.1k

Views

Extent of uniqueness of QR decomposition

Published on 25 Mar 2026 - 3:03

score 32 · Answer 11 · 2018-04-23 00:16:32

32

Views

Nth ordering of matrix operations

Published on 23 Apr 2018 - 0:16

score 438 · Answer 12 · 2026-03-25 02:57:15

438

Views

Matrix decomposition into 2x2 elementary transforms

Published on 25 Mar 2026 - 2:57

score 49 · Answer 13 · 2026-03-25 11:04:44

49

Views

Jordan form of $T^{-1}$ if $T=I-D$ where $D$ is the differential operator

Published on 25 Mar 2026 - 11:04

score 694 · Answer 14 · 2026-03-25 05:05:40

694

Views

geometric transformations in 3d - combining rotation and scaling

Published on 25 Mar 2026 - 5:05

score 125 · Answer 15 · 2018-04-23 02:11:46

125

Views

Help needed in understanding the answer to a simple question

Published on 23 Apr 2018 - 2:11

List Question

Finding a new basis for the null space of a matrix

Finding system of equations from solutions

Eigenvalues of $A'A$ where A is an $m\times n$ matrix of rank $m$.

Can we construct a matrix $A$ and $B$ with given eigenvalues such that $A + B$ will have eigenvalues $(c_1, \ldots, c_n)$?

Number of $4 \times 4$ matrices with sum along row or column $0$

Eigenvalues of matrix with components near the diagonal?

How to find a matrix D such that B + D is a singular matrix.

If matrix $A$ is not symmetric, can I determine the sign of $x^T A x$?

Is Schur complement better conditioned than the original matrix?

Extent of uniqueness of QR decomposition

Nth ordering of matrix operations

Matrix decomposition into 2x2 elementary transforms

Jordan form of $T^{-1}$ if $T=I-D$ where $D$ is the differential operator

geometric transformations in 3d - combining rotation and scaling

Help needed in understanding the answer to a simple question

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