#19751: Implement a generic multiplication method for dense matrices
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Reporter: mmezzarobba | Owner:
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-7.0
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Marc Mezzarobba | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/mmezzarobba/genmatmult | 77166d86df0c3d37eafbb0dd6fa61a962cf051ad
Dependencies: | Stopgaps:
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Changes (by jdemeyer):
* status: needs_review => needs_work
Comment:
> Changed, but why? Cython seems to be able to infer that type.
I didn't check the C code. I didn't even know Cython could do that.
Something else: replace
{{{
raise IndexError("Number of columns of left must equal number of rows of
right.")
}}}
by an `ArithmeticError`. The same exception occurs in Sage as `IndexError`
and as `ArithmeticError` but I think the latter is the most suitable.
You also need to doctest this exception.
--
Ticket URL: <http://trac.sagemath.org/ticket/19751#comment:8>
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