[Edu-sig] Textbooks

[kirby urner]

>
> I just wanted to verify the claim that some Python modules
> really incorporate J semantics.


numpy incorporates the idea of 'rank' and 'axes' much the way J or other
array based languages do i.e. you can shape numbers to have however many
axes in some multidimensional box.  Then you can do operations on entire
boxes, including in ways which combine them with each other.

To be array based, and to use a semantics of tacit programming, appear to me
as separable capabilities.  Numpy doesn't try to be like J in this latter
sense.  APL isn't quite like J in this sense either, yet is array-based as
well.

Kirby
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