Question

Matrix derivative of $A(x) \left(A(x)^A(x)\right)^{-1} A(x)^$ w.r.t. $x$, where $A(x)$ unknown matrix is a function of $x$?

score 83 · Answer 1 · 2026-04-15 17:38:09

83

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Matrix derivative of $A(x) \left(A(x)^A(x)\right)^{-1} A(x)^$ w.r.t. $x$, where $A(x)$ unknown matrix is a function of $x$?

Published on 15 Apr 2026 - 17:38

score 199 · Answer 2 · 2026-04-13 23:43:05

199

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Matrices satisfying $(A-B)C=BA^{-1}$ where $A$ is Non singular

Published on 13 Apr 2026 - 23:43

score 58 · Answer 3 · 2026-04-13 23:06:24

58

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Surface described by ${\bf r^\top A r + b^\top r}=1$?

Published on 13 Apr 2026 - 23:06

score 37 · Answer 4 · 2026-04-09 07:34:41

37

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Intuition behind 'Family of Solutions'

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score 45 · Answer 5 · 2026-04-13 00:03:53

45

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Linear transformation $End(V)\rightarrow\mathbb R$

Published on 13 Apr 2026 - 0:03

score 459 · Answer 6 · 2026-04-13 18:35:01

459

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role of the identity matrix in gradient of negative log likelihood loss function

Published on 13 Apr 2026 - 18:35

score 869 · Answer 7 · 2026-04-16 03:14:39

869

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Number of equations in orthogonal matrix?

Published on 16 Apr 2026 - 3:14

score 438 · Answer 8 · 2026-04-29 12:53:16

438

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Projection onto the Set of Circulant Matrices

Published on 29 Apr 2026 - 12:53

score 91 · Answer 9 · 2026-04-18 07:54:24

91

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$\vec{u}=\vec{w_{1}}+\vec{w_{2}}, w_1\in W$ and $w_2\in W^\perp$

Published on 18 Apr 2026 - 7:54

score 124 · Answer 10 · 2026-04-11 22:50:03

124

Views

Given linear functionals, in $\mathbb{R}^3$, find the annihilator

Published on 11 Apr 2026 - 22:50

score 54 · Answer 11 · 2026-04-29 12:52:49

54

Views

How do you calculate the determinant of this magic square?

Published on 29 Apr 2026 - 12:52

score 470 · Answer 12 · 2026-04-14 15:52:23

470

Views

How do you prove that $P(X) \mapsto P(X+1) - P(X)$ is a linear map?

Published on 14 Apr 2026 - 15:52

score 2.4k · Answer 13 · 2026-04-17 01:41:03

2.4k

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The basis of the set of polynomials with degree at most n

Published on 17 Apr 2026 - 1:41

score 561 · Answer 14 · 2026-04-14 11:17:45

561

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What Is the Relationship Between Affine Sets and Affine Spaces?

Published on 14 Apr 2026 - 11:17

score 389 · Answer 15 · 2026-04-11 18:58:55

389

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Inverse of symmetric matrices

Published on 11 Apr 2026 - 18:58

List Question

Matrix derivative of $A(x) \left(A(x)^A(x)\right)^{-1} A(x)^$ w.r.t. $x$, where $A(x)$ unknown matrix is a function of $x$?

Matrices satisfying $(A-B)C=BA^{-1}$ where $A$ is Non singular

Surface described by ${\bf r^\top A r + b^\top r}=1$?

Intuition behind 'Family of Solutions'

Linear transformation $End(V)\rightarrow\mathbb R$

role of the identity matrix in gradient of negative log likelihood loss function

Number of equations in orthogonal matrix?

Projection onto the Set of Circulant Matrices

$\vec{u}=\vec{w_{1}}+\vec{w_{2}}, w_1\in W$ and $w_2\in W^\perp$

Given linear functionals, in $\mathbb{R}^3$, find the annihilator

How do you calculate the determinant of this magic square?

How do you prove that $P(X) \mapsto P(X+1) - P(X)$ is a linear map?

The basis of the set of polynomials with degree at most n

What Is the Relationship Between Affine Sets and Affine Spaces?

Inverse of symmetric matrices

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