On Tue, Jan 19, 2010 at 03:43:25PM -0600, Robert Kern wrote: > On Tue, Jan 19, 2010 at 15:29, Charles R Harris > <[email protected]> wrote:
> > Column stack the bunch so that the last column is y, then do a qr > > decomposition. The last column of q is the (normalized) orthogonal vector > > and its amplitude is the last (bottom right) component of r. > Is the order actually guaranteed? In a quick test, it seems to work. > In any case, I suspect that needing to do both x and y will make doing > the QR once and some two pairs of dot products a better proposition > than two QR decompositons. Yes, that's correct, but my initial question wasn't clear enough, and Chuck was answering my initial question. Thanks a lot Chuck, Gaël _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
