On 11/1/07, Ursula Whitcher <[EMAIL PROTECTED]> wrote:
> > what do you mean by the 'Singular console in Sage'? A cell in the notebook
> > starting with "%singular" or the notebook in Singular mode or something from
> > the commandline like (singular_console())? Also, the standalone version of
> > Singular you tested, is this the version shipped with Sage? I.e. did you
> > start Singular via "sage -singular" or did you start your own built of
> > Singular you happen to have around?
>
> Typing sage -singular from the command line and reproducing the steps
> listed above yields the same bug. (This is SAGE Version 2.8.10
> running at sage.math.washington.edu .)
It works fine for me on sage.math, using exactly the same version
of SAGE. I just tried it, and here's the complete session log:
-----------------------------
Last login: Thu Nov 1 17:45:20 2007 from d-69-91-159-194.dhcp4.washington.edu
[EMAIL PROTECTED]:~$ sage -singular
SINGULAR / Development
A Computer Algebra System for Polynomial Computations / version 3-0-3
0<
by: G.-M. Greuel, G. Pfister, H. Schoenemann \ May 2007
FB Mathematik der Universitaet, D-67653 Kaiserslautern \
> proc reducePoleOrder (poly pPoly, ideal Jacob, ideal xVariables) {
. list divL = division(pPoly, Jacob);
. print("division complete");
. matrix divM = divL[1];
. ideal divI = ideal(divM);
. matrix redM = diff(xVariables, divI);
. print("reduction complete");
. poly redPoly = trace(redM);
. print("trace complete");
. return(redPoly);
. }
> ring R = (0,t), (a,b,c), dp;
> poly Q = 1/3*(a^3+b^3+c^3)-t*a*b*c;
> ideal QIdeal = Q;
> ideal abcVars = a,b,c;
> ideal Jac = diff(abcVars, QIdeal);
> ideal JacG = groebner(Jac);
> short = 0;
>
. reducePoleOrder(a^2*b^2*c^2, Jac, abcVars);
division complete
reduction complete
trace complete
(-2*t^2)/(t^3-1)*a*b*c+(-t)/(t^3-1)*c^3
>
. poly testPoly = reducePoleOrder(a^2*b^2*c^2, Jac, abcVars);
division complete
reduction complete
trace complete
> testPoly;
(-2*t^2)/(t^3-1)*a*b*c+(-t)/(t^3-1)*c^3
>
-----------------------------
Do you use a funny shell, have funny environment variables
set, load customizations? ... becomes root on sage.math
and tries your session as you... and it works fine.
Maybe you didn't paste the correct log into your email.
Please try replicating it yourself, so you can remember
what you really meant.
William
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