[SciPy-dev] NumPy_for_Matlab_Addicts
Nils Wagner
nwagner at mecha.uni-stuttgart.de
Sat Feb 11 03:38:30 CST 2006
Hi,
The QR decomposition is already available in scipy.
qr(a, overwrite_a=0, lwork=None)
QR decomposition of an M x N matrix a.
Description:
Find a unitary matrix, q, and an upper-trapezoidal
matrix r
such that q * r = a
Inputs:
a -- the matrix
overwrite_a=0 -- if non-zero then discard the
contents of a,
i.e. a is used as a work array if
possible.
lwork=None -- >= shape(a)[1]. If None (or -1)
compute optimal
work array size.
Outputs:
q, r -- matrices such that q * r = a
Nils
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