Inner Products, Projections and the SVD · 免费预览

正交投影

1. Orthogonal Projections

Orthogonal Projections

The orthogonal projection of $x$ onto the subspace spanned by a unit vector $u$ is

Orthogonal Projections (2)

Orthogonal Projections (3)

Orthogonal Projections (4)

Orthogonal Projections (5)

Orthogonal Projections (6)

Orthogonal Projections (7)

For an orthogonal projection matrix $P$ , which identity holds?

The orthogonal projection of $x$ onto a subspace that already contains $x$ returns ______ .

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