Question

Find ($A + x B)^{-1}$ where $A$ and $B$ are $N \times N$ matrices, and $x$ is a scalar. $A^{-1}$ and $B^{-1}$ are known but $x$ is variable.

score 56 · Answer 1 · 2026-04-03 17:58:55

Find ($A + x B)^{-1}$ where $A$ and $B$ are $N \times N$ matrices, and $x$ is a scalar. $A^{-1}$ and $B^{-1}$ are known but $x$ is variable.

score 264 · Answer 2 · 2026-04-05 07:15:10

264

Views

Solving general multivariable quadratic equations

Published on 05 Apr 2026 - 7:15

score 34 · Answer 3 · 2026-04-05 07:20:00

34

Views

How do I show that for small enough $x,$ this equation $f(x) A v(x)= x v(x), f(x)\to 1, x\to 0, ||v(x)||=1, A$ fixed non-zero matrix, can't be true?

Published on 05 Apr 2026 - 7:20

score 38 · Answer 4 · 2023-03-02 02:18:30

38

Views

Differences between a matrix that represents a linear transformation and a matrix that represents a system of linear equations?

Published on 02 Mar 2023 - 2:18

score 41 · Answer 5 · 2026-03-30 00:17:59

41

Views

Solving a matrix equation involving trace and determinant

Published on 30 Mar 2026 - 0:17

score 120 · Answer 6 · 2026-03-30 05:15:31

120

Views

Normalize row and column sums of a symmetric matrix

Published on 30 Mar 2026 - 5:15

score 51 · Answer 7 · 2026-03-26 16:08:54

51

Views

About a Matrix equation $ P(LP)^\dagger = (LP)^\dagger$

Published on 26 Mar 2026 - 16:08

score 27 · Answer 8 · 2026-03-25 17:45:30

27

Views

Show that all elements in each column of these matrices share the same complex argument

Published on 25 Mar 2026 - 17:45

score 84 · Answer 9 · 2023-03-03 18:53:29

84

Views

The row space of this matrix has no vectors $≥ 0$. Why?

Published on 03 Mar 2023 - 18:53

score 116 · Answer 10 · 2026-03-30 16:48:18

116

Views

Solution existence of general multivariable quadratic equations

Published on 30 Mar 2026 - 16:48

score 104 · Answer 11 · 2026-04-07 22:30:16

104

Views

How to transform a matrix equation to "flip" a vector to the other side?

Published on 07 Apr 2026 - 22:30

score 60 · Answer 12 · 2026-04-03 07:28:12

60

Views

Finding all the variants to find the convergence of Gauss-Seidel iterative method.

Published on 03 Apr 2026 - 7:28

score 98 · Answer 13 · 2023-03-10 23:13:03

98

Views

Find solution of linear equation when knowing relation between columns

Published on 10 Mar 2023 - 23:13

score 58 · Answer 14 · 2026-03-26 06:29:50

58

Views

Geometric interpretation of an underdetermined system of equations

Published on 26 Mar 2026 - 6:29

score 78 · Answer 15 · 2026-03-25 23:42:21

78

Views

How to find ${\rm rank}(2I_n-A)$ where A is a square matrix of size $n$ and $A^3 - 6A^2 + 12A = 0_n$?

Published on 25 Mar 2026 - 23:42

List Question

Find ($A + x B)^{-1}$ where $A$ and $B$ are $N \times N$ matrices, and $x$ is a scalar. $A^{-1}$ and $B^{-1}$ are known but $x$ is variable.

Solving general multivariable quadratic equations

How do I show that for small enough $x,$ this equation $f(x) A v(x)= x v(x), f(x)\to 1, x\to 0, ||v(x)||=1, A$ fixed non-zero matrix, can't be true?

Differences between a matrix that represents a linear transformation and a matrix that represents a system of linear equations?

Solving a matrix equation involving trace and determinant

Normalize row and column sums of a symmetric matrix

About a Matrix equation $ P(LP)^\dagger = (LP)^\dagger$

Show that all elements in each column of these matrices share the same complex argument

The row space of this matrix has no vectors $≥ 0$. Why?

Solution existence of general multivariable quadratic equations

How to transform a matrix equation to "flip" a vector to the other side?

Finding all the variants to find the convergence of Gauss-Seidel iterative method.

Find solution of linear equation when knowing relation between columns

Geometric interpretation of an underdetermined system of equations

How to find ${\rm rank}(2I_n-A)$ where A is a square matrix of size $n$ and $A^3 - 6A^2 + 12A = 0_n$?

Trending Questions

Popular # Hahtags

Popular Questions