One other note - I forgot a logarithm in my example: D( ln( sum(p[k]*multivariate_normal(mu[k], Sigma), k) ) --> ...
On Tue, Feb 26, 2013 at 8:39 PM, Mike Valenzuela <[email protected]>wrote: > The Matrix Cookbook is available online at: > http://orion.uwaterloo.ca/~hwolkowi/matrixcookbook.pdf > > 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 <[email protected]> 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 >> > >
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