#9625: solve hangs on a small algebraic system with 4 equations in 4 unknowns
------------------------+---------------------------------------------------
Reporter: zimmerma | Owner: burcin
Type: defect | Status: new
Priority: blocker | Milestone: 4.5.3
Component: calculus | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------+---------------------------------------------------
Changes (by mpatel):
* milestone: sage-4.5.2 => 4.5.3
Comment:
I see this problem on both bsd and sage.math. Pressing Control-C yields
{{{
sage: solve(sys, [s, t, w, z])
Control-C pressed. Interrupting Maxima. Please wait a few seconds...
Maxima crashed -- automatically restarting.
[]
sage:
}}}
Possibly naive question: Is this a problem in the Maxima wrapper or in
Maxima itself?
On sage.math, Maple 12 responds to `solve({...}, [s, t, w, z]);` almost
immediately with
{{{
[[s = 1/15 RootOf(145777 _Z - 2724518665994742900057173191849397
57108616849397
+ 181634577732980673347190960 _Z, label = _L6), t = --------------, w
= 1,
32799825
137699550319729285466821911369819307114778019367342119879667352
z = - ---------------------------------------------------------------
-
618583496779496012457663125225479925612236417948265175
9946390625479936819718245891740613642685141
2
-------------------------------------------------------- RootOf(145777
_Z
27836257355077320560594840635146596652550638807671932875
- 2724518665994742900057173191849397 + 181634577732980673347190960
_Z,
label = _L6)]]
}}}
But I think it's too late in the 4.5.2 release cycle to fix this problem,
so I've changed the milestone to 4.5.3.
Out of curiosity: Does this system have a special provenance?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9625#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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