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Orthogonality and Least Squares
Orthogonal sets, projections, Gram-Schmidt, QR, and least-squares fitting.
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Compute
∥
⟨
3
,
−
4
⟩
∥
\|\langle 3,-4\rangle\|
∥
⟨
3
,
−
4
⟩
∥
.
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AC
7
8
9
+
4
5
6
−
1
2
3
×
0
.
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b
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