List questions from matrix-equations

Published on 13 Apr 2026 - 18:00

32

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Is there a solution to these matrix equations?

Published on 08 Apr 2026 - 18:44

266

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Consider the following matrices. Calculate the results of the operations below, where the operations are allowed.

Published on 15 Apr 2026 - 18:13

57

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Why does the result of $(X^\top X + Z^\top A Z)^{\dagger}X^\top y$ is independent of A?

Published on 17 Apr 2026 - 7:11

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Find two non-zero matrices B such that AB = BA

Published on 16 Apr 2026 - 12:03

144

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Solving quadratic matrix equation for $X$

Published on 12 Apr 2026 - 20:42

43

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Can we find $\gamma>0$ such that $ \|x-A^{-1} y\|_2 \leq \gamma \|x-y\|_2$?

Published on 14 Apr 2026 - 20:10

34

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Rescaling solution in matrix equation

Published on 10 Apr 2026 - 0:15

152

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Matrix multiplication of symmetric positive definite matrices

Published on 14 Apr 2026 - 10:18

48

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Covariance Matrix Subtitution

Published on 14 Apr 2026 - 5:04

67

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Solving matrix equation $x^{T}Ay$ for $A$ exponential

Published on 14 Apr 2026 - 7:31

391

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Solving System of Equations using Gauss/Gauss-Jordan (Matrix)

Published on 17 Apr 2026 - 11:12

124

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Find the determinant of matrix B, using matrix A and elementary row operations.

Published on 16 Apr 2026 - 12:11

435

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Consider the following systems of equations with unknowns x, y. For which pairs of values (a, b) does each system have an infinite no. of solutions?

Published on 15 Apr 2026 - 12:27

113

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When is a non-symmetric matrix times a diagonal matrix symmetric?

Published on 10 Apr 2026 - 23:55

List Question

solving a quadratic with tensor coefficients

Is there a solution to these matrix equations?

Consider the following matrices. Calculate the results of the operations below, where the operations are allowed.

Why does the result of $(X^\top X + Z^\top A Z)^{\dagger}X^\top y$ is independent of A?

Find two non-zero matrices B such that AB = BA

Solving quadratic matrix equation for $X$

Can we find $\gamma>0$ such that $ \|x-A^{-1} y\|_2 \leq \gamma \|x-y\|_2$?

Rescaling solution in matrix equation

Matrix multiplication of symmetric positive definite matrices

Covariance Matrix Subtitution

Solving matrix equation $x^{T}Ay$ for $A$ exponential

Solving System of Equations using Gauss/Gauss-Jordan (Matrix)

Find the determinant of matrix B, using matrix A and elementary row operations.

Consider the following systems of equations with unknowns x, y. For which pairs of values (a, b) does each system have an infinite no. of solutions?

When is a non-symmetric matrix times a diagonal matrix symmetric?

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