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st: Kronecker curiosity

From   "Nick Cox" <>
To   <>
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 


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.


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