#3745: calculus -- bugs in solve
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Reporter: was | Owner: gfurnish
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.1
Component: calculus | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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Changes (by kcrisman):
* upstream: => N/A
Comment:
Update from Maxima 5.20.1 in Sage:
{{{
sage: sage: var('a,b,c,d')
(a, b, c, d)
sage: sage: m = matrix(2,[a,b,c,d])
sage: sage: i2=identity_matrix(SR,2)
sage: sage: eqlist=[(m*m).list()[i] - i2.list()[i] for i in range(4)]
sage: sage: solve(eqlist,a,b,c,d)
[a^2 + b*c - 1, a*b + b*d, a*c + c*d, b*c + d^2 - 1]
}}}
so this one seems to be working now, at least in the sense that it doesn't
throw an error.
The second one now causes a hang.
And the first one is still there :(
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/3745#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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