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Question: LS, SVD and Orthogonal Matrix

Question:LS, SVD and Orthogonal Matrix

MrMarc 3163
matrix svd orthogonal
January 17 2012
0
This question is related to the Question right-angled triangle

How can I show that the Least Square solution x = (A'.A)^-1.A'.y
Is different when A is an orthogonal matrix compared to an
overdetermined or underdetermind matrix.

Preferably transform the matrix using Singular Value Decomposition (SVD)
or something similar.

Thanx
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