Em Ter, 2008-11-04 às 18:56 -0600, Jason Grout escreveu: > On the numpy list, there has been discussion on PEP225, which advocates > for more custom inline operators in python, particularly to address > matrix multiplication versus element-wise multiplication. Fernando > Perez has put together a summary and is sending this to python-dev in a > few days. See: > > https://cirl.berkeley.edu/fperez/static/numpy-pep225/ > > If you have comments on this, please tell Fernando right away; he'll be > sending the proposal to python-dev in a few days.
What's his e-mail? I was thinking about some *. operator to differentiate matrix multiplication from elementwise multiplication. That way it would be possible to eliminate this terrible inconsistency between arrays and matrices. > > I've copied the first couple of paragraphs for your convenience: > > In the Python-dev mailing lists, there were recently two threads > regarding the possibility of adding to the language a new set of > operators. This would allow one to define things like an element-wise > and a matrix product for numpy arrays, for example. The original > python-dev threads are here: > > * http://mail.python.org/pipermail/python-dev/2008-July/081508.html > * http://mail.python.org/pipermail/python-dev/2008-July/081551.html > > And the actual PEP that discusses this at length is here: > > * http://www.python.org/dev/peps/pep-0225/ > > In order to provide feedback from the scientific/numerical community, a > discussion was held on the numpy mailing list. This document is a brief > summary of this discussion, in addition to some issues that were brought > up during a BOF session that was held during the SciPy'08 conference. > The point of this document is to provide the Python development team > (and ultimately Guido) with feedback from a community that would be > likely an important target of the features discussed in PEP 225, hoping > that a final decision can be made on the PEP, either as-is or with > modifications arising from this feedback. > > > Jason > > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
