Question

Solve rotation matrix equation with orthonormality constraint by Lagrange multipliers

score 279 · Answer 1 · 2026-04-12 07:21:39

279

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Solve rotation matrix equation with orthonormality constraint by Lagrange multipliers

Published on 12 Apr 2026 - 7:21

score 76 · Answer 2 · 2026-04-13 14:03:19

76

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Does a closed form solution exist for $\beta$?

Published on 13 Apr 2026 - 14:03

score 110 · Answer 3 · 2026-04-13 00:29:56

110

Views

Unique solutions on system of equations

Published on 13 Apr 2026 - 0:29

score 318 · Answer 4 · 2026-04-13 15:35:39

318

Views

Solve system for diagonal matrix

Published on 13 Apr 2026 - 15:35

score 36 · Answer 5 · 2026-04-12 18:33:38

36

Views

Covariance of this expanded multivariate Gaussian?

Published on 12 Apr 2026 - 18:33

score 77 · Answer 6 · 2026-04-09 11:10:07

77

Views

Connection between two matrices

Published on 09 Apr 2026 - 11:10

score 26 · Answer 7 · 2026-04-17 13:59:36

For $m<n$ let $\vec{u_1}...\vec{u_m} \in R^n$ be an orth basis for span{$\vec{u_i}$}$^m_{i=1}$. $\vec{b} \in R^n$ closest vector to $\vec{b}$ in $U$?

score 106 · Answer 8 · 2026-04-13 06:42:14

106

Views

When can a linear transformation on the space of $n\times n$ matrices be written as a product?

Published on 13 Apr 2026 - 6:42

score 162 · Answer 9 · 2026-04-14 21:01:12

162

Views

Find a symmetric matrix knowing the eigenvalues and one eigen vector

Published on 14 Apr 2026 - 21:01

score 295 · Answer 10 · 2026-04-16 13:20:12

295

Views

For $a_i \in \mathbb{C}$, does $(1+a_1^k)(1+a_2^k)\cdots (1+a_n^k)=1$ for any positive integer $k$ imply $a_1=\cdots =a_n =0$?

Published on 16 Apr 2026 - 13:20

score 94 · Answer 11 · 2026-04-25 02:34:21

94

Views

Are the inverse of "nearly" diagonal nonsingular matrices also "nearly" diagonal?

Published on 25 Apr 2026 - 2:34

score 29 · Answer 12 · 2026-04-24 23:37:20

29

Views

Enumerating the square roots of a $2 \times 2$ matrix using its diagonalization and diagonalizability

Published on 24 Apr 2026 - 23:37

score 469 · Answer 13 · 2026-04-11 00:06:51

469

Views

How to solve $AX-XB=0$ for $X$?

Published on 11 Apr 2026 - 0:06

score 215 · Answer 14 · 2026-04-12 17:53:25

215

Views

What can we do to matrices that we can do to the regular good ol' numbers?

Published on 12 Apr 2026 - 17:53

score 192 · Answer 15 · 2026-04-13 18:23:11

192

Views

Is there a set of matrix transformations that convert a 1D vector into a 2D matrix?

Published on 13 Apr 2026 - 18:23

List Question

Solve rotation matrix equation with orthonormality constraint by Lagrange multipliers

Does a closed form solution exist for $\beta$?

Unique solutions on system of equations

Solve system for diagonal matrix

Covariance of this expanded multivariate Gaussian?

Connection between two matrices

For $m<n$ let $\vec{u_1}...\vec{u_m} \in R^n$ be an orth basis for span{$\vec{u_i}$}$^m_{i=1}$. $\vec{b} \in R^n$ closest vector to $\vec{b}$ in $U$?

When can a linear transformation on the space of $n\times n$ matrices be written as a product?

Find a symmetric matrix knowing the eigenvalues and one eigen vector

For $a_i \in \mathbb{C}$, does $(1+a_1^k)(1+a_2^k)\cdots (1+a_n^k)=1$ for any positive integer $k$ imply $a_1=\cdots =a_n =0$?

Are the inverse of "nearly" diagonal nonsingular matrices also "nearly" diagonal?

Enumerating the square roots of a $2 \times 2$ matrix using its diagonalization and diagonalizability

How to solve $AX-XB=0$ for $X$?

What can we do to matrices that we can do to the regular good ol' numbers?

Is there a set of matrix transformations that convert a 1D vector into a 2D matrix?

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