List questions from matrices

Published on 22 Apr 2026 - 23:33

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Preservence of CPD (conditionally positive definiteness) under infinite integral

Published on 13 Apr 2026 - 15:47

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How can I tell if a matrix is diagonalizable knowing only the trace, one eigenvalue, and a result of the characteristic polynomial?

Published on 12 Apr 2026 - 18:19

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How to solve this linear system in Matlab?

Published on 10 Apr 2026 - 17:04

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Rearranging a formula containing a non-square matrix

Published on 14 Apr 2026 - 4:56

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Calculation of the optimal matrix

Published on 11 Apr 2026 - 19:30

144

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Unitary $2 \times 2$ matrix - Question

Published on 11 Apr 2026 - 3:31

36

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Preservation of definiteness dominance

Published on 11 Apr 2026 - 1:57

709

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Proof of a matrix trace inequality

Published on 11 Apr 2026 - 8:18

396

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Sum of columns in matrix

Published on 12 Apr 2026 - 11:23

104

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If $0 \leq A \leq B$, can I conclude that $(A \otimes I) \leq (B \otimes I)$?

Published on 15 Apr 2026 - 13:19

135

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Ray transfer matrix

Published on 12 Apr 2026 - 12:41

833

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Orthogonal complement of a vector

Published on 12 Apr 2026 - 1:31

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Largest eigenvalues of matrix and its doubled symmetric part

Published on 11 Apr 2026 - 4:38

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Matrix Calculus: $\nabla_{\mathbf{c}}(-2\mathbf{x}^T \mathbf{D} \mathbf{c} + \mathbf{c}^T \mathbf{c}) = -2\mathbf{D}^T \mathbf{x} + 2\mathbf{c}$?

Published on 17 Apr 2026 - 5:13

List Question

Finding the inverse of $A$

Preservence of CPD (conditionally positive definiteness) under infinite integral

How can I tell if a matrix is diagonalizable knowing only the trace, one eigenvalue, and a result of the characteristic polynomial?

How to solve this linear system in Matlab?

Rearranging a formula containing a non-square matrix

Calculation of the optimal matrix

Unitary $2 \times 2$ matrix - Question

Preservation of definiteness dominance

Proof of a matrix trace inequality

Sum of columns in matrix

If $0 \leq A \leq B$, can I conclude that $(A \otimes I) \leq (B \otimes I)$?

Ray transfer matrix

Orthogonal complement of a vector

Largest eigenvalues of matrix and its doubled symmetric part

Matrix Calculus: $\nabla_{\mathbf{c}}(-2\mathbf{x}^T \mathbf{D} \mathbf{c} + \mathbf{c}^T \mathbf{c}) = -2\mathbf{D}^T \mathbf{x} + 2\mathbf{c}$?

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