List questions from matrix-equations

Published on 06 May 2018 - 6:42

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Show that the matrix with a's on the diagonal and b's off the diagonal has got an inverse with the same structure

Published on 07 May 2018 - 0:51

1.9k

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Quadratic equation for a matrix

Published on 07 May 2018 - 12:27

148

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Prove that $X \succeq xx^T \iff \begin{bmatrix} X & x \\ x^T & 1\end{bmatrix} \succeq 0$

Published on 24 Mar 2026 - 22:08

626

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How to Solve Linear Least Squares with Unit Simplex Constraint

Published on 26 Mar 2026 - 7:02

74

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Wierd Factorization of Matrix polynomial

Published on 25 Mar 2026 - 12:20

168

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Proof of this equivalence

Published on 11 May 2018 - 10:25

43

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Composing linear equation system for a matrix from multiple correspondences

Published on 11 May 2018 - 13:04

358

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How do I solve a system of equations if the coefficient matrix is singular?

Published on 11 May 2018 - 22:19

79

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Value of $h$ and $k$ for system consistency

Published on 25 Mar 2026 - 13:55

230

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Solution form of a certain matrix relation

Published on 14 May 2018 - 15:52

1.4k

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Converting polynomial linear mapping to a linear matrix mapping

Published on 14 May 2018 - 22:52

117

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Minimize $\sum\limits_i || t_i - A_i \ x||^2$ wrt x

Published on 25 Mar 2026 - 8:07

49

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Need help following through the matrix calculus in this paper

Published on 25 Mar 2026 - 13:54

4.7k

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Determining the maximum number of linearly independent rows and columns for a given matrix

Published on 17 May 2018 - 16:32

List Question

Matrix equation with form of $AB=X$，$BA=Y$ where $A$, $B$ are unknown.

Show that the matrix with a's on the diagonal and b's off the diagonal has got an inverse with the same structure

Quadratic equation for a matrix

Prove that $X \succeq xx^T \iff \begin{bmatrix} X & x \\ x^T & 1\end{bmatrix} \succeq 0$

How to Solve Linear Least Squares with Unit Simplex Constraint

Wierd Factorization of Matrix polynomial

Proof of this equivalence

Composing linear equation system for a matrix from multiple correspondences

How do I solve a system of equations if the coefficient matrix is singular?

Value of $h$ and $k$ for system consistency

Solution form of a certain matrix relation

Converting polynomial linear mapping to a linear matrix mapping

Minimize $\sum\limits_i || t_i - A_i \ x||^2$ wrt x

Need help following through the matrix calculus in this paper

Determining the maximum number of linearly independent rows and columns for a given matrix

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