Question

Diagnolization of a matrix in R3

score 67 · Answer 1 · 2026-04-01 18:50:30

67

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Diagnolization of a matrix in R3

Published on 01 Apr 2026 - 18:50

score 121 · Answer 2 · 2026-03-30 17:01:51

121

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Understanding Karlin's Proof of Perron's Theorem.

Published on 30 Mar 2026 - 17:01

score 20 · Answer 3 · 2026-03-26 14:20:54

20

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Is there a name for this type of matrix ($C + C^\dagger$ is negative definite)?

Published on 26 Mar 2026 - 14:20

score 67 · Answer 4 · 2026-03-24 20:32:02

67

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Rotate point $\langle x,y,z\rangle$ a specific angle around axis $\langle u,v,w\rangle$

Published on 24 Mar 2026 - 20:32

score 82 · Answer 5 · 2018-02-08 16:15:56

82

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Sum inverse implies equal determinant

Published on 08 Feb 2018 - 16:15

score 282 · Answer 6 · 2026-04-01 10:44:58

282

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Matrix Determinant after row changes

Published on 01 Apr 2026 - 10:44

score 1.2k · Answer 7 · 2026-03-24 19:01:24

1.2k

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Square root of a matrix (or a 2nd order tensor)

Published on 24 Mar 2026 - 19:01

score 169 · Answer 8 · 2026-03-31 15:38:39

169

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For a class of matrices $M_{2n}$: $\dim(\ker(M_{2n}))$ is zero if $n$ is even and 2 if $n$ is odd

Published on 31 Mar 2026 - 15:38

score 1.6k · Answer 9 · 2026-03-30 20:44:27

1.6k

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If $A$ is $m\times n$ matrix and $AA^T$ is non singular show that $\text{rank}(A) = m$

Published on 30 Mar 2026 - 20:44

score 116 · Answer 10 · 2026-03-30 18:20:15

116

Views

Is there a name for $\max \| A x \|$ for all $\|x\|=1?$

Published on 30 Mar 2026 - 18:20

score 342 · Answer 11 · 2026-03-25 20:34:22

342

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Free Variables in a Reduced Matrix - How do they affect rows filled with zeros?

Published on 25 Mar 2026 - 20:34

score 128 · Answer 12 · 2026-04-02 02:53:21

128

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Correlation Coefficients in Simple Linear Regression Model

Published on 02 Apr 2026 - 2:53

score 73 · Answer 13 · 2018-02-09 03:21:28

73

Views

Confusion in proof of a lemma.

Published on 09 Feb 2018 - 3:21

score 782 · Answer 14 · 2026-03-26 01:23:20

782

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Find the value of $k$ if $\det(A^{–1}) = (\det A)^k$ where $A$ is a $3 \times 3$ matrix

Published on 26 Mar 2026 - 1:23

score 1.5k · Answer 15 · 2026-03-29 10:07:48

1.5k

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Matrix permutation-similarity invariants

Published on 29 Mar 2026 - 10:07

List Question

Diagnolization of a matrix in R3

Understanding Karlin's Proof of Perron's Theorem.

Is there a name for this type of matrix ($C + C^\dagger$ is negative definite)?

Rotate point $\langle x,y,z\rangle$ a specific angle around axis $\langle u,v,w\rangle$

Sum inverse implies equal determinant

Matrix Determinant after row changes

Square root of a matrix (or a 2nd order tensor)

For a class of matrices $M_{2n}$: $\dim(\ker(M_{2n}))$ is zero if $n$ is even and 2 if $n$ is odd

If $A$ is $m\times n$ matrix and $AA^T$ is non singular show that $\text{rank}(A) = m$

Is there a name for $\max \| A x \|$ for all $\|x\|=1?$

Free Variables in a Reduced Matrix - How do they affect rows filled with zeros?

Correlation Coefficients in Simple Linear Regression Model

Confusion in proof of a lemma.

Find the value of $k$ if $\det(A^{–1}) = (\det A)^k$ where $A$ is a $3 \times 3$ matrix

Matrix permutation-similarity invariants

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