On Thu, Apr 29, 2010 at 1:30 PM, Pauli Virtanen <pav@iki.fi> wrote:
Wed, 28 Apr 2010 14:12:07 -0400, Alan G Isaac wrote:
[clip]
> Here is a related ticket that proposes a more explicit alternative:
> adding a ``dot`` method to ndarray.
> http://projects.scipy.org/numpy/ticket/1456

I kind of like this idea. Simple, obvious, and leads
to clear code:

       a.dot(b).dot(c)

or in another multiplication order,

       a.dot(b.dot(c))

And here's an implementation:

       http://github.com/pv/numpy-work/commit/414429ce0bb0c4b7e780c4078c5ff71c113050b6

I think I'm going to apply this, unless someone complains, as I
don't see any downsides (except maybe adding one more to the
huge list of methods ndarray already has).


That should do it. I was going to link directly to the code in multiarraymodule, maybe break it out into a separate dot.c file, but the call to the python function gets to the goal with less effort.

Chuck