Christian Bauer cbauer at student.physik.uni-mainz.de
Wed Jul 4 13:06:19 CEST 2001


On Wed, Jul 04, 2001 at 10:19:12AM -0400, Wolfgang Abele wrote:
> How can I set the coefficient domain of polynomials?

You can't.

> Say, I want my 
> coefficients to be in Z mod 17, i.e. Galois Field 17, what do I do?

You would have to manually adjust the coefficients after each operation.
There's an smod() function in GiNaC for this, but this is a symmetric

> In other words, it is less efficient to write polynomials routines in
> Normal.cpp (the polynomial module in GiNac) than directly work with the
> CLN classes?

Yes. GiNaC doesn't use CLN's polynomial type because we needed to work with
a more general class of expressions.


  / Coding on PowerPC and proud of it
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