#12287: numpy array to matrix does not respect ring spesification
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Reporter: vlima | Owner: jason, was
Type: defect | Status: new
Priority: minor | Milestone: sage-5.0
Component: linear algebra | Keywords: numpy, matrix
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by vlima):
In sage/matrix/constructor.py line 606 (sage-4.7.2):
{{{
if isinstance(args[0], numpy.ndarray):
}}}
If this is true, then the ring argument to matrix() will be ignored
and <numpy array>.dtype determines the ring for the matrix. F.ex:
{{{
elif str_dtype.count('int') == 1:
m = matrix(ZZ, [list(row) for row in list(num_array)])
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12287#comment:1>
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