Question

Proof any five points determine a conic

score 4k · Answer 1 · 2026-04-12 01:42:14

4k

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Proof any five points determine a conic

Published on 12 Apr 2026 - 1:42

score 95 · Answer 2 · 2026-04-10 12:42:03

95

Views

From $\det(A^T)=\det(A)$ to equivalence of row/column expansion of determinant?

Published on 10 Apr 2026 - 12:42

score 39 · Answer 3 · 2026-04-12 14:52:11

39

Views

Subset of $h$ rows of $A$ with minimal norm

Published on 12 Apr 2026 - 14:52

score 27 · Answer 4 · 2026-04-13 17:48:35

27

Views

Why is the higlighted equivalence true?

Published on 13 Apr 2026 - 17:48

score 1k · Answer 5 · 2026-04-11 16:13:04

1k

Views

(Basic Linear Algebra) Eigenvalues of SPD Matrix

Published on 11 Apr 2026 - 16:13

score 45 · Answer 6 · 2026-04-10 12:08:30

45

Views

Composing linear equation system for a matrix from multiple correspondences

Published on 10 Apr 2026 - 12:08

score 1.5k · Answer 7 · 2026-04-12 09:00:17

1.5k

Views

Let $A$ be a diagonalizable matrix, show that $A^{-1} = A$

Published on 12 Apr 2026 - 9:00

score 768 · Answer 8 · 2026-04-29 04:31:54

768

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$A^2=-I_4$. Find possible values of minimal polynomial and characteristic polynomial

Published on 29 Apr 2026 - 4:31

score 8.6k · Answer 9 · 2026-04-25 12:47:25

8.6k

Views

Show that a vector can be expressed as a linear combination of the vectors that form a basis for its vector space in exactly one way

Published on 25 Apr 2026 - 12:47

score 115 · Answer 10 · 2026-04-14 12:28:56

115

Views

requesting a vector formula proof

Published on 14 Apr 2026 - 12:28

score 285 · Answer 11 · 2026-04-15 12:51:51

285

Views

What am I doing wrong in finding the $\gcd(x^3-2x^2-x+2, x^3-4x^2+3x)$?

Published on 15 Apr 2026 - 12:51

score 465 · Answer 12 · 2026-04-14 08:30:22

465

Views

Determine whether S is a subspace of V, if yes find a basis and its dimension.

Published on 14 Apr 2026 - 8:30

score 8.1k · Answer 13 · 2026-03-24 23:46:21

8.1k

Views

Matrix projection onto positive semidefinite cone with respect to the spectral norm

Published on 24 Mar 2026 - 23:46

score 122 · Answer 14 · 2026-04-29 04:31:53

122

Views

Write $m_{I-A}$ (the minimal polynomial of $I-A$) in terms of $m_A$ and conclude: $\deg(m_A)=\deg(m_{I-A})$

Published on 29 Apr 2026 - 4:31

score 61 · Answer 15 · 2026-04-12 17:46:31

61

Views

Bounds on an element of a stochastic matrix to a power.

Published on 12 Apr 2026 - 17:46

List Question

Proof any five points determine a conic

From $\det(A^T)=\det(A)$ to equivalence of row/column expansion of determinant?

Subset of $h$ rows of $A$ with minimal norm

Why is the higlighted equivalence true?

(Basic Linear Algebra) Eigenvalues of SPD Matrix

Composing linear equation system for a matrix from multiple correspondences

Let $A$ be a diagonalizable matrix, show that $A^{-1} = A$

$A^2=-I_4$. Find possible values of minimal polynomial and characteristic polynomial

Show that a vector can be expressed as a linear combination of the vectors that form a basis for its vector space in exactly one way

requesting a vector formula proof

What am I doing wrong in finding the $\gcd(x^3-2x^2-x+2, x^3-4x^2+3x)$?

Determine whether S is a subspace of V, if yes find a basis and its dimension.

Matrix projection onto positive semidefinite cone with respect to the spectral norm

Write $m_{I-A}$ (the minimal polynomial of $I-A$) in terms of $m_A$ and conclude: $\deg(m_A)=\deg(m_{I-A})$

Bounds on an element of a stochastic matrix to a power.

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