Mathematics, 22.11.2019 00:31, Katmcfee7681
Least squares and qr factorization. suppose a is an m n matrix with linearly independent columns and qr factorization a = qr, and b is an m-vector. the vector a^x is the linear combination of the columns of a that is closest to the vector b, i. e., it is the projection of b onto the set of linear combinations of the columns of a. (a) show that a^x = qqt b. (the matrix qqt is called the projection matrix.) (b) show that = bk2. (this is the square of the distance between b and the closest linear combination of the columns of a.)
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Mathematics, 29.06.2019 03:30, jfrey7621
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Mathematics, 10.07.2019 02:20, 23ricorvan
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Mathematics, 18.11.2019 22:31, christingle2004
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Mathematics, 18.11.2019 23:31, amaljiiju5022
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Least squares and qr factorization. suppose a is an m n matrix with linearly independent columns and...
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