List questions from linear-algebra

Published on 24 Mar 2026 - 23:45

540

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Multiplying a matrix by the other one is zero. Are those two matrice in null space of each other?

Published on 17 Apr 2026 - 22:19

311

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SL Decomposition of $\begin{pmatrix} 5 & -4 \\ 9 & -7 \end{pmatrix}$

Published on 14 Apr 2026 - 4:17

1.8k

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verifying an inner product?

Published on 13 Apr 2026 - 20:13

126

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Is $\sigma(A)$ similar to $A$ when $\sigma$ is a permutation of degree $n$?

Published on 13 Apr 2026 - 19:16

64

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matrix inverse structure

Published on 12 Apr 2026 - 22:53

2k

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Finding number of invertible matrices in finite field

Published on 17 Apr 2026 - 22:19

135

Views

Use of "rank" as a metric for data compression using SVD

Published on 29 Apr 2026 - 12:42

99

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Finding change of basis matrix.What am i doing wrong?

Published on 10 Apr 2026 - 11:47

2k

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Matrix version of Pythagoras theorem

Published on 16 Apr 2026 - 15:32

120

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Conditions implying image of $B$ equals kernel of $A$

Published on 10 Apr 2026 - 5:44

443

Views

complex square matrix unitarily equivalent to its Jordan normal form

Published on 11 Apr 2026 - 20:50

147

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Signature of scalar products with parameter

Published on 09 Apr 2026 - 16:42

224

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Let $V$ be the space of $n\times n$ matrices, $B$ a fix matrix, then what is matrix of operator $L_B(A) = BA$ on $V$?

Published on 13 Apr 2026 - 15:16

122

Views

Eigenvectors of a vectorized tranpose matrix

Published on 16 Apr 2026 - 20:51

List Question

deriving an orthogonal base for polynomials of degree 3

Multiplying a matrix by the other one is zero. Are those two matrice in null space of each other?

SL Decomposition of $\begin{pmatrix} 5 & -4 \\ 9 & -7 \end{pmatrix}$

verifying an inner product?

Is $\sigma(A)$ similar to $A$ when $\sigma$ is a permutation of degree $n$?

matrix inverse structure

Finding number of invertible matrices in finite field

Use of "rank" as a metric for data compression using SVD

Finding change of basis matrix.What am i doing wrong?

Matrix version of Pythagoras theorem

Conditions implying image of $B$ equals kernel of $A$

complex square matrix unitarily equivalent to its Jordan normal form

Signature of scalar products with parameter

Let $V$ be the space of $n\times n$ matrices, $B$ a fix matrix, then what is matrix of operator $L_B(A) = BA$ on $V$?

Eigenvectors of a vectorized tranpose matrix

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