Question

Which is the rotated frame in which the given matrix transforms into this block matrix? [UPDATED]

score 40 · Answer 1 · 2026-03-26 11:03:40

40

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Which is the rotated frame in which the given matrix transforms into this block matrix? [UPDATED]

Published on 26 Mar 2026 - 11:03

score 81 · Answer 2 · 2020-05-07 18:26:39

81

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symmetric matrix and eigenvalues

Published on 07 May 2020 - 18:26

score 517 · Answer 3 · 2020-05-10 06:39:12

517

Views

Every symmetric square real matrix has a non-zero real eigenvector.

Published on 10 May 2020 - 6:39

score 1.5k · Answer 4 · 2026-03-27 07:49:32

1.5k

Views

Singular value decomposition (SVD) for non-symmetric square real matrix contradicts spectral theorem?

Published on 27 Mar 2026 - 7:49

score 379 · Answer 5 · 2020-05-13 12:10:54

379

Views

Are the eigenvalues of the symmetric part of a matrix with eigenvalues - all with positive real part- positive too?

Published on 13 May 2020 - 12:10

score 59 · Answer 6 · 2020-05-14 20:17:58

59

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Is binomial expansion true for all kinds of matrices

Published on 14 May 2020 - 20:17

score 50 · Answer 7 · 2026-02-23 10:00:09

50

Views

Random symmetrical matrices for generalized eigenvalue problem - How to solve

Published on 23 Feb 2026 - 10:00

score 77 · Answer 8 · 2026-03-27 21:19:24

77

Views

Positive Definiteness of a symmetrized matrix involving the Moore Penrose Pseudoinverse

Published on 27 Mar 2026 - 21:19

score 63 · Answer 9 · 2020-05-18 02:56:08

63

Views

let $A$ be a 3 by 3 symmetric matrix over $\mathbb{R}$ such that $A^3+A^2-A-E=0$, then $|A+2E|=$?

Published on 18 May 2020 - 2:56

score 211 · Answer 10 · 2020-05-18 11:48:46

211

Views

If $xy^T$ is symmetric then $x$ and $y$ are linearly dependent.

Published on 18 May 2020 - 11:48

score 98 · Answer 11 · 2026-03-27 21:20:35

98

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Prove or disprove $\tfrac{b^{\top}Ab}{b^{\top}A^{-1}b}\leq\tfrac{\lVert Ab \rVert^{2}}{\lVert b \rVert^{2}}$

Published on 27 Mar 2026 - 21:20

score 190 · Answer 12 · 2020-05-19 08:31:28

190

Views

Compute determinant of symmetric matrix in general

Published on 19 May 2020 - 8:31

score 69 · Answer 13 · 2020-05-20 10:44:21

69

Views

Estimating matrix raised to a power

Published on 20 May 2020 - 10:44

score 95 · Answer 14 · 2020-05-21 21:19:56

95

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Compare $\det(I+A(\sum_{j=1}^{N}B_{j}))$ and $\sum_{j=1}^{N} \det(I+A B_{j})$

Published on 21 May 2020 - 21:19

score 208 · Answer 15 · 2026-03-25 23:52:21

208

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Prove that Let A be a definite positive matrix, such that for every positive integer k, there exists a symmetric matrix B such that A=B^k

Published on 25 Mar 2026 - 23:52

List Question

Which is the rotated frame in which the given matrix transforms into this block matrix? [UPDATED]

symmetric matrix and eigenvalues

Every symmetric square real matrix has a non-zero real eigenvector.

Singular value decomposition (SVD) for non-symmetric square real matrix contradicts spectral theorem?

Are the eigenvalues of the symmetric part of a matrix with eigenvalues - all with positive real part- positive too?

Is binomial expansion true for all kinds of matrices

Random symmetrical matrices for generalized eigenvalue problem - How to solve

Positive Definiteness of a symmetrized matrix involving the Moore Penrose Pseudoinverse

let $A$ be a 3 by 3 symmetric matrix over $\mathbb{R}$ such that $A^3+A^2-A-E=0$, then $|A+2E|=$?

If $xy^T$ is symmetric then $x$ and $y$ are linearly dependent.

Prove or disprove $\tfrac{b^{\top}Ab}{b^{\top}A^{-1}b}\leq\tfrac{\lVert Ab \rVert^{2}}{\lVert b \rVert^{2}}$

Compute determinant of symmetric matrix in general

Estimating matrix raised to a power

Compare $\det(I+A(\sum_{j=1}^{N}B_{j}))$ and $\sum_{j=1}^{N} \det(I+A B_{j})$

Prove that Let A be a definite positive matrix, such that for every positive integer k, there exists a symmetric matrix B such that A=B^k

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