Question

How to compute characteristic polynomial?

score 193 · Answer 1 · 2017-03-09 06:38:32

193

Views

How to compute characteristic polynomial?

Published on 09 Mar 2017 - 6:38

score 77 · Answer 2 · 2026-03-25 19:10:25

77

Views

If $k$ is element of kernel of mapping $ f$, should it always be $f(k) = 0$?

Published on 25 Mar 2026 - 19:10

score 39 · Answer 3 · 2017-03-09 20:04:44

39

Views

Why is there another transformation matrix for the bases of the image and of the preimage of this mapping?

Published on 09 Mar 2017 - 20:04

score 80 · Answer 4 · 2017-03-10 20:23:18

80

Views

determinant of a symmetric matrix

Published on 10 Mar 2017 - 20:23

score 157 · Answer 5 · 2017-03-11 12:01:16

157

Views

True or false? If the column-vectors of $A \in \mathbb{R}^{n \times n}$ are linearly dependent, then we have that $\text{det(A)}=0$

Published on 11 Mar 2017 - 12:01

score 99 · Answer 6 · 2017-03-11 12:49:02

99

Views

True or false? For all $A,B \in \mathbb{R}^{n \times n}$ we have that det(A+B) $\neq$ det(A)$+$ det(B)

Published on 11 Mar 2017 - 12:49

score 55 · Answer 7 · 2017-03-11 16:29:47

55

Views

Is this true or false: Switching two columns of $A \in \mathbb{R}^{n \times n}$ doesn't change $det(A)$

Published on 11 Mar 2017 - 16:29

score 84 · Answer 8 · 2026-04-04 15:20:38

84

Views

Prove that $\det\left(I_kp - Az\right) =\det\left(I_k - A_1z - \dots - A_pz^p\right)$

Published on 04 Apr 2026 - 15:20

score 1.1k · Answer 9 · 2017-03-11 18:31:12

1.1k

Views

Find the determinant of a Vandermonde-like matrix

Published on 11 Mar 2017 - 18:31

score 58 · Answer 10 · 2017-03-12 03:48:45

58

Views

If $A$ and $B$ are $4\times 4$ matrices, and $\det(A)=3$, $\det(B)=5$, find the $\det$ of the following

Published on 12 Mar 2017 - 3:48

score 141 · Answer 11 · 2017-03-13 01:44:37

141

Views

Incorrectly solving the determinant of a matrix

Published on 13 Mar 2017 - 1:44

score 155 · Answer 12 · 2017-03-13 22:11:06

155

Views

Easy to see that the matrix is singular

Published on 13 Mar 2017 - 22:11

score 107 · Answer 13 · 2017-03-14 11:49:31

107

Views

Find the determinant after a certain row operation is applied to a matrix with known determinant

Published on 14 Mar 2017 - 11:49

score 3k · Answer 14 · 2017-03-16 01:00:47

3k

Views

Complexity of calculating the determinant of a $n \times n$ matrix using Laplace expansion

Published on 16 Mar 2017 - 1:00

score 28 · Answer 15 · 2017-03-16 11:51:58

28

Views

What conditions on ${\bf{A}}_1,{\bf{A}}_2$ should be satisfied to make the formula concave over ${X_i}$

Published on 16 Mar 2017 - 11:51

List Question

How to compute characteristic polynomial?

If $k$ is element of kernel of mapping $ f$, should it always be $f(k) = 0$?

Why is there another transformation matrix for the bases of the image and of the preimage of this mapping?

determinant of a symmetric matrix

True or false? If the column-vectors of $A \in \mathbb{R}^{n \times n}$ are linearly dependent, then we have that $\text{det(A)}=0$

True or false? For all $A,B \in \mathbb{R}^{n \times n}$ we have that det(A+B) $\neq$ det(A)$+$ det(B)

Is this true or false: Switching two columns of $A \in \mathbb{R}^{n \times n}$ doesn't change $det(A)$

Prove that $\det\left(I_kp - Az\right) =\det\left(I_k - A_1z - \dots - A_pz^p\right)$

Find the determinant of a Vandermonde-like matrix

If $A$ and $B$ are $4\times 4$ matrices, and $\det(A)=3$, $\det(B)=5$, find the $\det$ of the following

Incorrectly solving the determinant of a matrix

Easy to see that the matrix is singular

Find the determinant after a certain row operation is applied to a matrix with known determinant

Complexity of calculating the determinant of a $n \times n$ matrix using Laplace expansion

What conditions on ${\bf{A}}_1,{\bf{A}}_2$ should be satisfied to make the formula concave over ${X_i}$

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