[Numpy-discussion] : Boolean binary '-' operator
alan.isaac at gmail.com
Tue Jun 27 19:58:10 EDT 2017
On 6/27/2017 5:35 PM, Nathaniel Smith wrote:
> I remember... The major issue here is that some people want dot(a, b) on Boolean matrices to use these semantics, right?
Yes; this has worked in the past, and loss of this functionality is unexpected.
That said, I haven't used this outside of a teaching context,
so for me it only affects some course notes.
I suppose loss of this behavior could be somewhat mitigated
if numpy could provide an optimized general inner product
(along the line of the Wolfram Language's `Inner`). But note
that numpy.linalg.matrix_power is also lost (e.g., the derived
graphs that allow an intuitive representation of transitive closure).
More information about the NumPy-Discussion