List questions from orthogonality

Published on 25 Sep 2018 - 9:14

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Normal of a point on the surface of an ellipsoid

Published on 24 Mar 2026 - 23:56

81

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Decompose $x$ into $F$ and $F^{\perp }$ in $l^2(\mathbb{N}, \mathbb{C})$

Published on 25 Mar 2026 - 9:53

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Orthogonality vs perpendicularity of planes

Published on 28 Sep 2018 - 23:13

245

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How many orthogonal projectors on a given subspace are there?

Published on 25 Mar 2026 - 9:48

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Unitary in the Orthocomplement of a Matrix

Published on 30 Sep 2018 - 12:59

498

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Orthogonal complement of linear span with respect to matrix of bilinear form

Published on 25 Mar 2026 - 3:07

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Proof for why symmetric matrices are only orthogonally diagonalizable

Published on 26 Mar 2026 - 2:45

40

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If vector $y_1 = (1,2,3)$ and $y_2 = (4,5,6)$, how to calculate orthogonal projector $\prod\{y_1\}$ onto subspace spaned by the vectors $y_1,y_2$?

Published on 26 Mar 2026 - 4:35

634

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Orthogonal Basis and orthogonal projection

Published on 25 Mar 2026 - 9:47

322

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Family of circles orthogonal to two given circles

Published on 08 Oct 2018 - 0:34

74

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If T is a reflection then $Ker (T-Id) = Im (T-Id)^{\perp}$

Published on 24 Mar 2026 - 23:56

240

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Best approximation and orthogonality

Published on 25 Mar 2026 - 9:31

259

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Theorem about projections and direct sums

Published on 25 Mar 2026 - 9:46

389

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orthogonalization and orthonormalization

Published on 25 Mar 2026 - 19:00

List Question

A problem on orthogonality of functions

Normal of a point on the surface of an ellipsoid

Decompose $x$ into $F$ and $F^{\perp }$ in $l^2(\mathbb{N}, \mathbb{C})$

Orthogonality vs perpendicularity of planes

How many orthogonal projectors on a given subspace are there?

Unitary in the Orthocomplement of a Matrix

Orthogonal complement of linear span with respect to matrix of bilinear form

Proof for why symmetric matrices are only orthogonally diagonalizable

If vector $y_1 = (1,2,3)$ and $y_2 = (4,5,6)$, how to calculate orthogonal projector $\prod\{y_1\}$ onto subspace spaned by the vectors $y_1,y_2$?

Orthogonal Basis and orthogonal projection

Family of circles orthogonal to two given circles

If T is a reflection then $Ker (T-Id) = Im (T-Id)^{\perp}$

Best approximation and orthogonality

Theorem about projections and direct sums

orthogonalization and orthonormalization

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