geqrf(input, *, out=None) -> (Tensor, Tensor)¶
This is a low-level function for calling LAPACK directly. This function returns a namedtuple (a, tau) as defined in LAPACK documentation for geqrf .
You’ll generally want to use
Computes a QR decomposition of
input, but without constructing and as explicit separate matrices.
Rather, this directly calls the underlying LAPACK function ?geqrf which produces a sequence of ‘elementary reflectors’.
See LAPACK documentation for geqrf for further details.