List questions from matrix-calculus

Published on 29 Mar 2026 - 12:12

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Gradient and Hessian of this function

Published on 29 Mar 2026 - 6:30

149

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Name of this Kronecker-product-like operation?

Published on 26 Mar 2026 - 1:10

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A rank one matrix can be written in a special form

Published on 30 Mar 2026 - 13:22

24

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Similarity of a matrix

Published on 30 Mar 2026 - 13:26

32

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Similarity of some vectors

Published on 30 Mar 2026 - 13:22

28

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Stability of equilibrium point in matrix case (arbitrary dimension)

Published on 02 Apr 2017 - 18:25

51

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How to obtain $\frac{d}{dt}(XY^{-1})=\dot{X}Y^{-1}-XY^{-1}\dot{Y}Y^{-1}$

Published on 03 Apr 2017 - 0:54

21

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On invertibility of a convergent serie of matrix.

Published on 03 Apr 2017 - 17:52

75

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Continuous deformations of points in $\mathbb{R}^n$ in a monotonic fashion

Published on 04 Apr 2017 - 14:41

792

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Is this matrix NSD?

Published on 04 Apr 2017 - 17:01

90

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$\det(\lim\limits_{n \to \infty} A_n)=\lim\limits_{n \to \infty}(\det A_n)$

Published on 05 Apr 2017 - 9:36

52

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Gradient of $\text{tr}\left[(\bf{F}^T \bf{F})^{-1} \bf{S}\right]$ with respect to the columns of F?

Published on 05 Apr 2017 - 18:48

313

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Convert expression from index to matrix/vector notation

Published on 26 Mar 2026 - 22:19

631

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Derivative of a matrix and vector product

Published on 07 Apr 2017 - 8:16

List Question

What is the differential of $X'X$?

Gradient and Hessian of this function

Name of this Kronecker-product-like operation?

A rank one matrix can be written in a special form

Similarity of a matrix

Similarity of some vectors

Stability of equilibrium point in matrix case (arbitrary dimension)

How to obtain $\frac{d}{dt}(XY^{-1})=\dot{X}Y^{-1}-XY^{-1}\dot{Y}Y^{-1}$

On invertibility of a convergent serie of matrix.

Continuous deformations of points in $\mathbb{R}^n$ in a monotonic fashion

Is this matrix NSD?

$\det(\lim\limits_{n \to \infty} A_n)=\lim\limits_{n \to \infty}(\det A_n)$

Gradient of $\text{tr}\left[(\bf{F}^T \bf{F})^{-1} \bf{S}\right]$ with respect to the columns of F?

Convert expression from index to matrix/vector notation

Derivative of a matrix and vector product

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