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Meaning of * (mtimes) for nd-arrays

From: Marco Caliari
Subject: Meaning of * (mtimes) for nd-arrays
Date: Mon, 15 Feb 2016 10:41:20 +0100 (CET)
User-agent: Alpine 2.10 (DEB 1266 2009-07-14)

Dear all,

I recently discovered that [1;2;3;4]*ones(1,1,3), for instance, gives a four-by-three matrix. I would have expected an error (like in Matlab) or a four-by-one-by-three array. So, what is the definition? Is it just squeeze("outer product")? Is it documented? A similar thing happens with kron.



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