bug of t_POLMOD ?

[Kiyoshi Ohgishi <ohgisi@payila.dj.kit.ac.jp>]

Don't work as I expected.

Example)

? A=Mod(Mod(1, 2)*X, Mod(1, 2)*X^3 + Mod(1, 2)*X + Mod(1, 2))
%1 = Mod(Mod(1, 2)*X, Mod(1, 2)*X^3 + Mod(1, 2)*X + Mod(1, 2))
? A^0
%2 = Mod(1, Mod(1, 2)*X^3 + Mod(1, 2)*X + Mod(1, 2))
? A^0+A^0
%3 = Mod(2, Mod(1, 2)*X^3 + Mod(1, 2)*X + Mod(1, 2))

P.S.
> In response to
> > Message-Id: <19980829165829F.ohgisi@payila.dj.kit.ac.jp>
> > Date: Sat, 29 Aug 1998 16:58:29 +0900 (JST)
> > From: Kiyoshi Ohgishi <ohgisi@payila.dj.kit.ac.jp>
> 
> > I found that the function "deriv" doesn't work as I expected.
> [...]
> > ? deriv(x*y,y)
> > %1 = 0
> 
> The following patch should cure the problem.  (ATTN Karim: it should
> also apply cleanly to your pre-2.0.12 snapshot.)

Thanks for patch.

Kiyoshi Ohgishi
Department of Electronics and Information Science,
Faculty of Engineering and Design,
Kyoto Institute of Technology