#15535: LinBox: you are running out of primes. 1000 coprime primes found
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Reporter: vbraun | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: linear algebra | Resolution:
Keywords: random_fail | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by roed):
I ran into this issue on Sage 6.4.1 trying to compute characteristic
polynomials. I was computing the characteristic polynomial of hundreds of
thousands of 3x3, 4x4, ..., 8x8 integer matrices, and at some point I got
the following:
sage: A = matrix(ZZ, 4, 4, [50528, 38927, 19455, 31617, 58686, 39770,
31059, 21905, 13382, 35615, 18158, 11629, 25923, 12324, 51823, 27000])
sage: A.charpoly()
you are running out of primes. 1000 coprime primes found
1
sage: B = copy(A); B.charpoly()
x^4 - 135456*x^3 + 1234244249*x^2 + 17242461420805*x - 995535814473032365
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Ticket URL: <http://trac.sagemath.org/ticket/15535#comment:8>
Sage <http://www.sagemath.org>
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