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Talk:QR decomposition: Difference between revisions
→Questionnable intent
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And both ''Q'' and ''R'' are stored in ''A'' in the process, with only a supplementary vector.
LINPACK and LAPACK are of course no exception, though they handle the question in a
different way [http://stackoverflow.com/questions/3031215/mystified-by-qr-q-what-is-an-orthonormal-matrix-in-compact-form].
And when solving a system given an already computed QR in packed form, there are also ways to do
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