#8098: solve_mod is horribly broken
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Reporter: was | Owner: AlexGhitza
Type: defect | Status: new
Priority: critical | Milestone: sage-4.3.2
Component: basic arithmetic | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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I was just grading papers in my class and one student (Andrew Ohana)
pointed out in his solution that Sage's solve_mod is massively broken.
For example:
{{{
sage: var('x')
sage: solve_mod([x^2==1], 9)
[] # WTF?
}}}
and:
{{{
sage: solve_mod([x^2==1], 8)
[(1,), (3,), (4,), (5,), (7,)]
}}}
Etc.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8098>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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