List questions from projection

Published on 26 Oct 2021 - 17:30

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Special cases of perspective projection

Published on 26 Oct 2021 - 23:22

395

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Difference between 2D pipeline and 3D pipeline

Published on 28 Oct 2021 - 11:03

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Suppose $P$ and $Q$ are orthogonal projections and $P+Q = I$. Prove that $P-Q$ must be an orthogonal matrix.

Published on 31 Mar 2026 - 10:14

156

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Vanishing point existence

Published on 31 Oct 2021 - 16:43

35

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$U_{1} \subseteq U_{2}^{\perp}$ if and only if $P_{W}=P_{U_{1}}+P_{U_{2}}$

Published on 01 Nov 2021 - 2:22

134

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what is the expected magnitude projection of random unit vector?

Published on 29 Mar 2026 - 20:45

765

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A equivalent condition for two projection operators commute

Published on 02 Nov 2021 - 15:21

85

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$\text{ran}\,N$ is closed if and only if $0$ is no limit point of $\sigma(N)$, for a normal bounded operator $N$ on a hilbert space $H$

Published on 26 Mar 2026 - 1:04

159

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Calculating the projection of a point onto a set given by complementarity constraints

Published on 05 Nov 2021 - 17:52

349

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Show that $p \leq q \iff pq = qp = p.$

Published on 08 Nov 2021 - 5:36

122

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Properness of a projection map is a local question, in a certain sense

Published on 26 Mar 2026 - 4:33

300

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Projection vs Cross Section

Published on 11 Nov 2021 - 15:09

38

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Finding the surface of a plane that is projected on a sphere

Published on 11 Nov 2021 - 17:27

43

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Kernel of range projection in $C^*$ algebras

Published on 12 Nov 2021 - 7:39

List Question

Difference between transformation and projection

Special cases of perspective projection

Difference between 2D pipeline and 3D pipeline

Suppose $P$ and $Q$ are orthogonal projections and $P+Q = I$. Prove that $P-Q$ must be an orthogonal matrix.

Vanishing point existence

$U_{1} \subseteq U_{2}^{\perp}$ if and only if $P_{W}=P_{U_{1}}+P_{U_{2}}$

what is the expected magnitude projection of random unit vector?

A equivalent condition for two projection operators commute

$\text{ran}\,N$ is closed if and only if $0$ is no limit point of $\sigma(N)$, for a normal bounded operator $N$ on a hilbert space $H$

Calculating the projection of a point onto a set given by complementarity constraints

Show that $p \leq q \iff pq = qp = p.$

Properness of a projection map is a local question, in a certain sense

Projection vs Cross Section

Finding the surface of a plane that is projected on a sphere

Kernel of range projection in $C^*$ algebras

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