#6165: [with patch (spkg), needs work] new maxima spkg that enhances eigenvector
results so they can be useable from symbolics
----------------------+-----------------------------------------------------
Reporter: jason | Owner: mabshoff
Type: defect | Status: new
Priority: major | Milestone: sage-4.1.2
Component: packages | Keywords:
Reviewer: | Author:
Merged: |
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Comment(by kcrisman):
Replying to [comment:6 AlexGhitza]:
> Jason, I think this has now been integrated in Maxima 5.19.1. You can
have a look at #6699 to double-check.
Yes, this is the case:
{{{
Maxima 5.19.1 http://maxima.sourceforge.netUsing Lisp SBCL
1.0.30Distributed under the GNU Public License. See the file
COPYING.Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) M1 : matrix ([0, 1, 0, 0], [0, 0, 0, 0], [0, 0, 2, 0], [0, 0, 0,
2]);
[ 0 1 0 0 ]
[ ]
[ 0 0 0 0 ]
(%o1) [ ]
[ 0 0 2 0 ]
[ ]
[ 0 0 0 2 ]
(%i2) [vals, vecs] : eigenvectors (M1);
(%o2) [[[0, 2], [2, 2]], [[[1, 0, 0, 0]], [[0, 0, 1, 0], [0, 0, 0, 1]]]]
(%i3) for i thru length (vals) do disp (val[i] = vals[i][1], mult[i] =
vals[i][2], vec[i] = vecs[i]);
val = 0
1
mult = 2
1
vec = [[1, 0, 0, 0]]
1
val = 2
2
mult = 2
2
vec = [[0, 0, 1, 0], [0, 0, 0, 1]]
2
(%o3) done
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6165#comment:7>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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