#6814: jordan_form transformation lack of precision sage 4.1.1
------------------------------+---------------------------------------------
Reporter: Henryk.Trappmann | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.1.2
Component: algebra | Keywords: jordan, precision, matrix,
transformation
Reviewer: | Author:
Merged: |
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There is an example for a lack of precision exception in the doc of
jordan_form
{{{
sage: b = matrix(ZZ,3,3,range(9))
sage: jf, p = b.jordan_form(RealField(15), transformation=True)
...
ValueError: cannot compute the transformation matrix due to lack of
precision
}}}
But if one increases the precision to the maximum still the same error
occurs
{{{
sage: b = matrix(ZZ,3,3,range(9))
sage: jf, p = b.jordan_form(RealField(16777216), transformation=True)
...
ValueError: cannot compute the transformation matrix due to lack of
precision
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6814>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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