[GiNaC-list] Bug with matrix subtraction

[Martin Sandve Alnæs]

2007/3/25, Ondrej Certik <ondrej at certik.cz>:
> Hi, I am a co-developer of swiginac. The bug is probably there. But, exactly as
> Alexei said, A-A = 0 is ugly, but, but fixing it would be very
> difficult (if possible at all). That's why I decided to rewrite the
> whole GiNaC in python directly:
>
> http://code.google.com/p/sympy/

Interesting, I'll look into it later. Another alternative I
considering for my application is to use swiginac for scalar
expressions only, and provide matrix functionality on top in Python.

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Martin Sandve Alnæs
PhD student, Cardiac Computations
Simula Research Laboratory, Norway