Differentiation problem with vectors and matrices.

From: "Dougal McDougal of that Elk" <FU2@xxxxxxxxxxxx>
Date: Fri, 10 Feb 2006 14:04:57 +1300

I need to differentiate the following

Vec(E) = (G*G)Vec(A)

with respect to the matrix G
where * is the Kronecker product. ie I need

d[Vec(E)/dG] = ?

Any ideas?

The matrices G,A, and E are square of dimension n.
Thanks

Tom

.

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