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Unformatted text preview: solve to produce a least-squares solution of A x = b . Can we simplify this if we have the QR factorization of A ? EXAMPLE. Find a least-squares solution of A x = b when A = 1-2-1 2 3 2 5 and b = 3 1-4 2 . Now ﬁnd the least-squares error associated with this least-squares solution. This is the distance from b to A ˆ x . HOMEWORK: SECTION 6.5...
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- Spring '08
- ax, Orthogonal matrix, Linear least squares