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st: Kronecker curiosity


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Kronecker curiosity
Date   Mon, 27 Nov 2006 08:55:35 -0000

Here is a little thing in Mata that tickled 
me once I'd worked it out. 

The Kronecker product 

(1..12)#(1..12)'

is what in primary [grade [ ... ]] school 
we used to chant as the "times tables".

Trivially obvious, I guess, to those very fluent
in matrix algebra, but perhaps diverting to 
some others.

Nick 
n.j.cox@durham.ac.uk 


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