#11847: unexpexted behavior of degree() with matrix ordering
-----------------------------------+----------------------------------------
Reporter: john_perry | Owner: malb
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.7.2
Component: commutative algebra | Keywords: degree, polynomial,
singular
Work_issues: | Upstream: Not yet reported
upstream; Will do shortly.
Reviewer: | Author: john_perry
Merged: | Dependencies: sage 4.7.2
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Comment(by mderickx):
We could also add a keyword "use_grading" to the degree methods.
Note that whathever we do, we should not do the combination of:
{{{
sage: f.exponent(x)
[3,1,1]
sage: g.exponent(x) % convenient behavior for a monomial
1
}}}
Such a function will be very hard to use since this behaviour will make
you write ugly code like:
{{{
deg = f.exponent()
if f.is_monomial():
do_something(f)
else:
do_something_else(f)
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11847#comment:6>
Sage <http://www.sagemath.org>
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