
From:  Ondrej Certik 
Subject:  [Axiomdeveloper] Re: Commutative symbols 
Date:  Mon, 26 Mar 2007 17:24:49 +0200 
But matrices are different kind of objects. I was talking about just noncommutative symbols, for example the Pauli algebra: http://en.wikipedia.org/wiki/Pauli_matrices
If you want to look at the actual implementation: http://sympy.googlecode.com/svn/trunk/sympy/modules/paulialgebra.py the relevant code (if we won't count comments and helper functions like delta and epsilon) is below 20 lines. That's what I mean when I want to have a CAS, that is easily extensible. Ondrej
[Prev in Thread]  Current Thread  [Next in Thread] 