List questions from linear-algebra

Published on 11 Apr 2026 - 3:14

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Do eigenvalues depend on the choice of basis?

Published on 15 Apr 2026 - 3:38

28

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How does taking real part of a matrix affect the Frobenius norm of its powers?

Published on 12 Apr 2026 - 5:59

44

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Why is the definition of a closure like this?

Published on 17 Apr 2026 - 8:35

1.8k

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Gradient of the spectral norm of a matrix

Published on 01 May 2026 - 16:39

39

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How to determine which solution is the best one in the least squares sense

Published on 19 Apr 2026 - 3:18

38

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Find all possible solutions to how many people voted on a quiz

Published on 16 Apr 2026 - 11:51

63

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Can't seem to obtain this diagonal matrix

Published on 14 Apr 2026 - 14:42

744

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Transforming a vector relative to another one

Published on 12 Apr 2026 - 16:48

145

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Find a sufficient and necessay condition on $I$ so that $\{M \in M_n(\mathbb R), \ rank(M) \in I \}$ is connected.

Published on 16 Apr 2026 - 5:27

37

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Zero point of uniformly convergent maps

Published on 20 Apr 2026 - 9:37

45

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A projectivity $\tau: \mathbb{P^2} \to \mathbb{P^2}$ s. t. fixes the point $P=(-1,1)$ and has $r:x-y-1=0$ as invariant line.

Published on 15 Apr 2026 - 18:47

207

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let $A\in M_{10}(\mathbb{R})$ and every row of $A$ has exactly one non zero element . find eigenvalue of $A$.

Published on 14 Apr 2026 - 12:26

70

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Set of normal matrices

Published on 19 Apr 2026 - 12:05

1k

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Proving that there exists a vector that makes a linear system inconsistent

Published on 17 Apr 2026 - 17:53

List Question

Flattening matrix derivatives

Do eigenvalues depend on the choice of basis?

How does taking real part of a matrix affect the Frobenius norm of its powers?

Why is the definition of a closure like this?

Gradient of the spectral norm of a matrix

How to determine which solution is the best one in the least squares sense

Find all possible solutions to how many people voted on a quiz

Can't seem to obtain this diagonal matrix

Transforming a vector relative to another one

Find a sufficient and necessay condition on $I$ so that $\{M \in M_n(\mathbb R), \ rank(M) \in I \}$ is connected.

Zero point of uniformly convergent maps

A projectivity $\tau: \mathbb{P^2} \to \mathbb{P^2}$ s. t. fixes the point $P=(-1,1)$ and has $r:x-y-1=0$ as invariant line.

let $A\in M_{10}(\mathbb{R})$ and every row of $A$ has exactly one non zero element . find eigenvalue of $A$.

Set of normal matrices

Proving that there exists a vector that makes a linear system inconsistent

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