Talk:QR decomposition

usage?

What does "and the usage for linear least squares problems on the example from Polynomial_regression" mean, specifically, as a task requirement? --Rdm 16:02, 17 June 2011 (UTC)

According to the wikipedia page on least squares, QR reduction is supposed to be more numerically stable than faster approaches. But we can solve the Polynomial regression example exactly, so I am not sure that that example is a good one for QR reduction least squares fitting. --Rdm 16:34, 17 June 2011 (UTC)