# QR factorization

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Let A= (1 0 -1 and b=(1

1 2 1 1

1 1 -3 1

0 1 1) 1)

1) Determine the QR factorization of A

2) Use the QR factors in 1) to determine the lease squares solution to Ax=b. Ax=b is the solution related to Rx=Q^Tb

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Â© BrainMass Inc. brainmass.com October 5, 2022, 5:57 pm ad1c9bdddf>https://brainmass.com/math/geometry-and-topology/qr-factorization-438097