#17785: crash in matrix.subs
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Reporter: cnassau | Owner:
Type: defect | Status: new
Priority: minor | Milestone: sage-6.5
Component: algebra | Keywords: crash, substitution
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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The following code gives a coredump in Sage-6.5.rc3:
{{{
a11,a12,a13,a21,a22,a23,a31,a32,a33 = allvars =
var("a11,a12,a13,a21,a22,a23,a31,a32,a33")
P=PolynomialRing(QQ,allvars,order='degrevlex')
P.inject_variables()
A=matrix([[a11,a12,a13,],[a21,a22,a23,],[a31,a32,a33]])
A.subs(a11=a13,a21=-a23,a31=a33,a22=0)
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/17785>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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