#5451: Bug in addition of rational functions over a finite field
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Reporter: cremona | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-3.4.1
Component: algebra | Keywords: rational function addition
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Comment(by cremona):
In sage/rings/polynomial/polynomial_ring_generic.py, in the function
quo_rem, the test of other.is_zero() is sometimes returning False despite
other being zero! I added some print statements and here is an example:
{{{
in quo_rem (parent = Univariate Polynomial Ring in t over Finite Field in
theta of size 3^2)...
self = t
other = 0
other.is_zero() = False
A = t
B = 0
---------------------------------------------------------------------------
ZeroDivisionError
}}}
That is as far as I got.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5451#comment:1>
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