Question

Knowing the answer of $Ax_1=a$ and $Bx_2=b$, can we say something about the solution of $(A+B)x_3=a+b$?

score 61 · Answer 1 · 2026-04-15 04:46:02

61

Views

Knowing the answer of $Ax_1=a$ and $Bx_2=b$, can we say something about the solution of $(A+B)x_3=a+b$?

Published on 15 Apr 2026 - 4:46

score 122 · Answer 2 · 2026-04-09 06:51:21

122

Views

Rewriting two coupled linear matrix equations as a single linear matrix equation

Published on 09 Apr 2026 - 6:51

score 74 · Answer 3 · 2026-04-10 22:36:53

74

Views

What's Lagrangian multiplier and when to use it?

Published on 10 Apr 2026 - 22:36

score 337 · Answer 4 · 2026-04-13 23:59:16

337

Views

Solving system of polynomial matrix equations over $\Bbb Z_2$

Published on 13 Apr 2026 - 23:59

score 54 · Answer 5 · 2026-04-08 17:50:04

54

Views

How do you finish deriving the final formula?

Published on 08 Apr 2026 - 17:50

score 57 · Answer 6 · 2026-04-11 12:32:03

57

Views

What is the name of the matrix operation "$\;\overrightarrow{y}\;$"?

Published on 11 Apr 2026 - 12:32

score 265 · Answer 7 · 2026-04-11 09:48:07

265

Views

Checking/testing bilinearity of a function

Published on 11 Apr 2026 - 9:48

score 77 · Answer 8 · 2026-04-13 15:13:41

77

Views

Rank of matrix verification using row echelon form

Published on 13 Apr 2026 - 15:13

score 783 · Answer 9 · 2026-04-12 08:07:32

783

Views

matrix multiplication but column wise

Published on 12 Apr 2026 - 8:07

score 111 · Answer 10 · 2026-04-15 13:16:31

111

Views

Exact solution to the first order matrix differential equation

Published on 15 Apr 2026 - 13:16

score 100 · Answer 11 · 2026-04-12 04:22:06

100

Views

How to find the eigenvectors of a matrix function that is linear in its eigenvectors?

Published on 12 Apr 2026 - 4:22

score 54 · Answer 12 · 2026-04-24 03:53:42

54

Views

Let $\eta$ be $4 X 1$ vector and $C$ a $4 X 4$ symmetric matrix. Is it possible to simplify the following expression? (expression too big for title!)

Published on 24 Apr 2026 - 3:53

score 47 · Answer 13 · 2026-04-24 03:50:18

47

Views

Find the upper element of the vector $A^n = \begin{pmatrix}5\\ \:2\end{pmatrix}$

Published on 24 Apr 2026 - 3:50

score 35 · Answer 14 · 2026-04-12 12:33:07

35

Views

Prove this identity using inequalities

Published on 12 Apr 2026 - 12:33

score 184 · Answer 15 · 2026-04-16 06:11:06

184

Views

There exists a square matrix $A$ with rational entries and dimension $2019 \times 2019$ such that $A^3 + 6A^2 - 2I = 0$?

Published on 16 Apr 2026 - 6:11

List Question

Knowing the answer of $Ax_1=a$ and $Bx_2=b$, can we say something about the solution of $(A+B)x_3=a+b$?

Rewriting two coupled linear matrix equations as a single linear matrix equation

What's Lagrangian multiplier and when to use it?

Solving system of polynomial matrix equations over $\Bbb Z_2$

How do you finish deriving the final formula?

What is the name of the matrix operation "$\;\overrightarrow{y}\;$"?

Checking/testing bilinearity of a function

Rank of matrix verification using row echelon form

matrix multiplication but column wise

Exact solution to the first order matrix differential equation

How to find the eigenvectors of a matrix function that is linear in its eigenvectors?

Let $\eta$ be $4 X 1$ vector and $C$ a $4 X 4$ symmetric matrix. Is it possible to simplify the following expression? (expression too big for title!)

Find the upper element of the vector $A^n = \begin{pmatrix}5\\ \:2\end{pmatrix}$

Prove this identity using inequalities

There exists a square matrix $A$ with rational entries and dimension $2019 \times 2019$ such that $A^3 + 6A^2 - 2I = 0$?

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