Does Maxima have QR and/or SVD factorizations built in?? I couldn't find them.
If not, are there any plugins available?
--- On Wed, 7/6/11, Barton Willis <willisb at unk.edu> wrote:
From: Barton Willis <willisb at unk.edu>
Subject: Re: [Maxima] multivariable kron_delta
To: maxima at math.utexas.edu
Date: Wednesday, July 6, 2011, 1:34 PM
The kron_delta function now takes two or more arguments--I committed new
code, user documentation, and (regression) tests
Maxima 5.24post http://maxima.sourceforge.net
using Lisp Clozure Common Lisp Version 1.6-dev? (WindowsX8632)
(%i1) kron_delta(u,n,k);
(%o1)kron_delta(k, n, u)
(%i2) subst(k=n+1,%);
(%o2) 0
(%i3) kron_delta(a,b,-c) - kron_delta(-a,-b,c);
(%o3) 0
(%i4) kron_delta(a,a,a,a);
(%o4)? 1
--Barton
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