Question

Solving the characteristic equation of a $3\times 3$ matrix to find the eigenvalues.

score 2.2k · Answer 1 · 2026-04-12 22:00:17

2.2k

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Solving the characteristic equation of a $3\times 3$ matrix to find the eigenvalues.

Published on 12 Apr 2026 - 22:00

score 62 · Answer 2 · 2026-04-14 01:03:47

62

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How to find the inverse of $A\otimes A + (I+D\otimes D)^{-1}(D\otimes D)$ without forming the Kronecker product?

Published on 14 Apr 2026 - 1:03

score 865 · Answer 3 · 2026-04-20 20:15:36

865

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Operator norm (induced $2$-norm) of a Kronecker tensor

Published on 20 Apr 2026 - 20:15

score 13.3k · Answer 4 · 2026-04-13 11:34:56

13.3k

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Eigenvalues, orthonormal eigenvectors

Published on 13 Apr 2026 - 11:34

score 4.4k · Answer 5 · 2026-04-08 17:07:50

4.4k

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Angle definition confusion in Rodrigues rotation matrix

Published on 08 Apr 2026 - 17:07

score 280 · Answer 6 · 2026-04-12 04:43:00

280

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Invertibility of bisymmetric matrices

Published on 12 Apr 2026 - 4:43

score 100 · Answer 7 · 2026-04-23 20:31:15

100

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Is there a relation between the solutions to these two Lyapunov matrix equations?

Published on 23 Apr 2026 - 20:31

score 133 · Answer 8 · 2026-04-12 08:24:16

133

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Dice Tournament Probabilities

Published on 12 Apr 2026 - 8:24

score 232 · Answer 9 · 2026-04-14 19:19:02

232

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Find matrices that commute with $\operatorname{Diag}(1,1,-1)$.

Published on 14 Apr 2026 - 19:19

score 3.1k · Answer 10 · 2026-04-09 14:45:40

3.1k

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How does v * vT equal a matrix?

Published on 09 Apr 2026 - 14:45

score 35.2k · Answer 11 · 2026-04-11 20:13:23

35.2k

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Understanding the absolute value of a matrix.

Published on 11 Apr 2026 - 20:13

score 312 · Answer 12 · 2026-04-08 16:50:53

312

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How to estimate pose in 2d?

Published on 08 Apr 2026 - 16:50

score 1.4k · Answer 13 · 2026-04-10 19:05:50

1.4k

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Is $A^2$ is diagonalizable , then is $A$ diagonalizable when $A$ is non-singular?

Published on 10 Apr 2026 - 19:05

score 76 · Answer 14 · 2026-04-16 20:34:01

76

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Let $B_1$ be some basis of $\mathbb{R^3}$ and $B_2$ be the ONB produced by $B_1$ after the Gram-schmidt process

Published on 16 Apr 2026 - 20:34

score 403 · Answer 15 · 2026-04-14 11:58:48

403

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Find A-3I inverse if you have characteristic polynomial and matrix S,D such that $SDS^T=A$

Published on 14 Apr 2026 - 11:58

List Question

Solving the characteristic equation of a $3\times 3$ matrix to find the eigenvalues.

How to find the inverse of $A\otimes A + (I+D\otimes D)^{-1}(D\otimes D)$ without forming the Kronecker product?

Operator norm (induced $2$-norm) of a Kronecker tensor

Eigenvalues, orthonormal eigenvectors

Angle definition confusion in Rodrigues rotation matrix

Invertibility of bisymmetric matrices

Is there a relation between the solutions to these two Lyapunov matrix equations?

Dice Tournament Probabilities

Find matrices that commute with $\operatorname{Diag}(1,1,-1)$.

How does v * vT equal a matrix?

Understanding the absolute value of a matrix.

How to estimate pose in 2d?

Is $A^2$ is diagonalizable , then is $A$ diagonalizable when $A$ is non-singular?

Let $B_1$ be some basis of $\mathbb{R^3}$ and $B_2$ be the ONB produced by $B_1$ after the Gram-schmidt process

Find A-3I inverse if you have characteristic polynomial and matrix S,D such that $SDS^T=A$

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