#6922: Matrix term ordering
------------------------------+---------------------------------------------
Reporter: klee | Owner: Somebody
Type: enhancement | Status: new
Priority: minor | Milestone: sage-feature
Component: basic arithmetic | Keywords: term order
Reviewer: | Author: Kwankyu Lee
Merged: |
------------------------------+---------------------------------------------
Comment(by klee):
The patch introduces matrix term ordering, but it does not work yet
unfortunately.
{{{
----------------------------------------------------------------------
| Sage Version 4.1.1, Release Date: 2009-08-14 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
Loading Sage library. Current Mercurial branch is: local2
sage: R.<x,y>=PolynomialRing(QQ,order="matrix(1,3,1,0)")
sage: r=singular(R)
sage: r
// characteristic : 0
// number of vars : 2
// block 1 : ordering M
// : names x y
// : weights 1 3
// : weights 1 0
// block 2 : ordering C
sage: f=x^2+y
sage: f.lt()
x^2
sage: f=x^3+y
sage: f.lt()
x^3
sage: t=R.term_order()
sage: t
matrix(1,3,1,0) term order
}}}
Please someone who knows better check the patch, and make it work!
Simon says:
Better wait for a proper implementation in libsingular
(which is beyond my capabilities, I am afraid).
Cheers,
Simon
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6922#comment:1>
Sage <http://sagemath.org/>
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