List questions from linear-algebra

Published on 14 Apr 2026 - 2:42

99

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Polynomial Set Membership Algorithms

Published on 13 Apr 2026 - 20:51

305

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If two lines are skew, then $\overrightarrow{PQ}\cdot\left(\mathbf{u}\times\mathbf{v}\right)\neq0$?

Published on 16 Apr 2026 - 15:57

31

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Is it possible to replace a transformation matrix (square matrix) by a unitary matrix?

Published on 09 Apr 2026 - 19:58

154

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Column space and general solution span

Published on 11 Apr 2026 - 16:28

192

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Using basis $e=[x^3,x^2,x,1]$ instead of $e=[1,x,x^2,x^3]$

Published on 10 May 2026 - 20:07

28

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Proving part c using parts a&b in a set of matrix exercises.

Published on 25 Apr 2026 - 11:49

2.5k

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Is a vector space over a ring or over a field?

Published on 13 Apr 2026 - 16:58

265

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Rectilinear generatrices parallel to a given plane

Published on 16 Apr 2026 - 16:22

75

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Error in solution of linear equations

Published on 11 Apr 2026 - 5:15

117

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Find symmetric matrix containing no 0's, given eigenvalues

Published on 10 May 2026 - 17:59

3.9k

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$T^*$ is invertible whenever $T$ is invertible.

Published on 11 May 2026 - 2:52

5.5k

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How to calculate an unknown vector from a known vector and an angle

Published on 15 Apr 2026 - 18:35

1.7k

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Simplify $ a = \frac{N\sum(xy)-\sum(x)\sum(y)}{N\sum(x^2)-(\sum(x))^2} $ to yield $ a = \frac{\bar{xy} - \bar{x}\bar{y}}{\bar{x^2}-\bar{x}^2}$

Published on 10 May 2026 - 19:03

39

Views

How to create a point behind another point given an angle?

Published on 10 Apr 2026 - 18:52

List Question

Function Subspace Matching under Discretization

Polynomial Set Membership Algorithms

If two lines are skew, then $\overrightarrow{PQ}\cdot\left(\mathbf{u}\times\mathbf{v}\right)\neq0$?

Is it possible to replace a transformation matrix (square matrix) by a unitary matrix?

Column space and general solution span

Using basis $e=[x^3,x^2,x,1]$ instead of $e=[1,x,x^2,x^3]$

Proving part c using parts a&b in a set of matrix exercises.

Is a vector space over a ring or over a field?

Rectilinear generatrices parallel to a given plane

Error in solution of linear equations

Find symmetric matrix containing no 0's, given eigenvalues

$T^*$ is invertible whenever $T$ is invertible.

How to calculate an unknown vector from a known vector and an angle

Simplify $ a = \frac{N\sum(xy)-\sum(x)\sum(y)}{N\sum(x^2)-(\sum(x))^2} $ to yield $ a = \frac{\bar{xy} - \bar{x}\bar{y}}{\bar{x^2}-\bar{x}^2}$

How to create a point behind another point given an angle?

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