On Mi, 2014-08-06 at 14:05 -0700, Chris Barker wrote: > On Wed, Aug 6, 2014 at 8:32 AM, Charles R Harris > <charlesr.har...@gmail.com> wrote: > Should also mention that we don't have the ability to operate > on stacked vectors because they can't be identified by > dimension info. One workaround is to add dummy dimensions > where needed, another is to add two flags, row and col, and > set them appropriately. > > > I've thought for ages that if you want to naturally do linear algebra, > you need to capture the concept of a row and column vector as distinct > from each-other and from (1,n) and (n,1) shape arrays. So: >
As a first thought I am against flags. We have dot, and vdot, which ideally would at some point do stacked matrix-matrix and stacked vector-vector (albeit vdot does complex conjugation). vector-matrix and matrix-vector would require the user to use (1, n) or (n, 1) matrices. If someone can convince me that this is a big deal, flags might be the only option, though... - Sebastian > > +1 > > > -Chris > > > > -- > > Christopher Barker, Ph.D. > Oceanographer > > Emergency Response Division > NOAA/NOS/OR&R (206) 526-6959 voice > 7600 Sand Point Way NE (206) 526-6329 fax > Seattle, WA 98115 (206) 526-6317 main reception > > chris.bar...@noaa.gov > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
