st: mata: interaction of column matrix

["Abdel Rahmen El Lahga" <rahmen.lahga@gmail.com>]

under mata (stata 9.2) I have the following matrices X=a,b,c and Y=d,e.
I would like to create a new matrix Z=(a:*d, a:*e, b:*d, b:*e, c:*d,
c:*e) which is an interaction betwenn X and Y's columns.
Note that in my old Gauss code this task is easy to ny typing
Z=X*~Y
Any help?
-- 
AbdelRahmen El Lahga
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