It is simply a collection of matrix properties which are proved elsewhere. I have done enough matrix calculus to know a basic approach (very similar to the derivatives for indexed tensors in Maxima) if it has to be implemented. The single entry matrix is sort of a generalization of the Kronecker delta function used in matrix calculus.
On Tue, Feb 26, 2013 at 6:25 PM, u1204
<address@hidden> wrote:
Mike,
These are interesting ideas but I don't know how to do what you
want in the current version of Axiom.
Where is this "Matrix Cookbook" you mention?
Tim Daly