List questions from matrices

Published on 25 Mar 2026 - 0:06

286

Views

Does $\exp(At)=\exp(Bt)$ for infinitely many $t$ imply $A=B$ where $A,B$ are square matrices?

Published on 25 Mar 2026 - 14:12

1.1k

Views

How to get derivative of $\frac{d}{dX}(X^TX) $ and $\frac{d}{dX}(XX^T) $

Published on 25 Mar 2026 - 4:42

254

Views

Calculate with quaternions in matrix form

Published on 24 Mar 2026 - 22:08

137

Views

How to spot the jordan normal form without calcultions

Published on 25 Mar 2026 - 7:48

100

Views

Eigenvalues: Large Numbers on Diagonal

Published on 28 Mar 2026 - 4:52

510

Views

Use of elementary matrices

Published on 30 Mar 2026 - 9:46

39

Views

Changing the basis of a vector or matrix

Published on 30 Mar 2018 - 20:57

510

Views

Why are these determinants $0$?

Published on 26 Mar 2026 - 15:16

86

Views

How to interpret $\left(\begin{smallmatrix}p_n & p_{n-1}\\ q_n & q_{n-1}\end{smallmatrix}\right)$?

Published on 24 Mar 2026 - 23:46

883

Views

Counterexample of Rayleigh Quotient Theorem for specific non-Hermitian matrix

Published on 28 Mar 2026 - 6:23

97

Views

Hypothesis Matrix and Eigenvectors

Published on 28 Mar 2026 - 4:52

84

Views

Matrix to the power of a matrix

Published on 31 Mar 2018 - 3:36

722

Views

$U$ be the set of all $2×2$ matrices with real entries such that all their eigenvalues belong to $C - R $, and $X = M_2(R)$. Is $U$ open?

Published on 28 Mar 2026 - 6:41

255

Views

Matrix Multiplication (Same dimension)

Published on 31 Mar 2018 - 8:18

List Question

How does adjoint operator show up in FOIL’ing an inner product?

Does $\exp(At)=\exp(Bt)$ for infinitely many $t$ imply $A=B$ where $A,B$ are square matrices?

How to get derivative of $\frac{d}{dX}(X^TX) $ and $\frac{d}{dX}(XX^T) $

Calculate with quaternions in matrix form

How to spot the jordan normal form without calcultions

Eigenvalues: Large Numbers on Diagonal

Use of elementary matrices

Changing the basis of a vector or matrix

Why are these determinants $0$?

How to interpret $\left(\begin{smallmatrix}p_n & p_{n-1}\\ q_n & q_{n-1}\end{smallmatrix}\right)$?

Counterexample of Rayleigh Quotient Theorem for specific non-Hermitian matrix

Hypothesis Matrix and Eigenvectors

Matrix to the power of a matrix

$U$ be the set of all $2×2$ matrices with real entries such that all their eigenvalues belong to $C - R $, and $X = M_2(R)$. Is $U$ open?

Matrix Multiplication (Same dimension)

Trending Questions

Popular # Hahtags

Popular Questions