#3058: coercing a vector to symbolic entries doesn't work when the vector's
parent
has a user-defined basis
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Reporter: jason | Owner: robertwb
Type: defect | Status: closed
Priority: major | Milestone: sage-duplicate/invalid/wontfix
Component: coercion | Resolution: invalid
Keywords: |
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Changes (by mhansen):
* status: new => closed
* resolution: => invalid
* milestone: sage-4.0.1 => sage-duplicate/invalid/wontfix
Comment:
This looks good with 4.0.1.rc1:
{{{
----------------------------------------------------------------------
| Sage Version 4.0.1.rc1, Release Date: 2009-06-04 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: sage: a=(QQ^3).subspace([[1,0,1]])
sage: sage: b=a.basis()[0]
sage: %time b/b.norm()
CPU times: user 0.01 s, sys: 0.00 s, total: 0.01 s
Wall time: 0.01 s
(1/2*sqrt(2), 0, 1/2*sqrt(2))
sage: b-b/b.norm()
(-1/2*sqrt(2) + 1, 0, -1/2*sqrt(2) + 1)
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/3058#comment:3>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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