At 02:47 PM 2/8/2015, Simon Wood wrote:

Not quite the same. This is not so much about language semantics as mathematical definitions. You (the Numpy community) have decided to overload certain mathematical operators to act in a way that is not consistent with linear algebra teachings. This can be a bit confusing for people who develop and implement mathematical algorithms that have a strong foundation in linear algebra, irrespective of the language they are migrating from.

With that said, I do appreciate the comments by Matthew, Eelco and others. Numpy is *not* a linear algebra package, so it does not adhere to the same mathematical definitions. This realization has cleared some things up.

Via my (admittedly infrequent use of) numpy.linalg http://docs.scipy.org/doc/numpy/reference/routines.linalg.html#linear-algebr... I think it behaves more in line with algebraic thinkers. I do not have any issue with broadcasting, and use it frequently, but I've always wanted to see more examples and discussion directly in the docs, in general. I have over years post/argued for a doc site more like PHP-doc, where users can contribute examples and discuss them. There is a wealth of such examples here in the list and the tutorial, but requires unnecessary time and Google-foo. - Ray Schumacher