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Unformatted text preview: solve to produce a leastsquares solution of A x = b . Can we simplify this if we have the QR factorization of A ? EXAMPLE. Find a leastsquares solution of A x = b when A = 121 2 3 2 5 and b = 3 14 2 . Now ﬁnd the leastsquares error associated with this leastsquares solution. This is the distance from b to A ˆ x . HOMEWORK: SECTION 6.5...
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 Spring '08
 PAVLOVIC
 ax, Orthogonal matrix, Linear least squares

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