[Numpy-discussion] matrix multiply

Alan G Isaac aisaac@american....
Sun Apr 6 21:51:51 CDT 2008

On Sun, 6 Apr 2008, Charles R Harris apparently wrote:
> I prefer the modern usage myself as it is closer to the 
> accepted logic operations, but applying algebraic 
> manipulations like powers and matrix inverses in that 
> context leads to strange results. 

I have not really thought much about inverses,
but nonnegative integer powers have a natural
interpretation in graph theory (with the boolean
algebra operations, not the boolean ring operations).
This is exactly what I was requesting be preserved.

Alan Isaac

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