#18076: Be nicer with numpy
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Reporter: vdelecroix | Owner: vdelecroix
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.6
Component: interfaces | Resolution:
Keywords: sd66 | Merged in:
Authors: Vincent Delecroix | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/vdelecroix/18076 | f739d53004dd326ef6412dc4f0ec283e59970586
Dependencies: | Stopgaps:
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Changes (by vdelecroix):
* commit: => f739d53004dd326ef6412dc4f0ec283e59970586
* branch: => u/vdelecroix/18076
Old description:
> Plenty of bugs have been reported for the interaction with numpy:
> - #8426: polynomial * constant does not work if constant is a numpy type
> - #8949: symbolic functions dont work with numpy.int32
> - #9769: symbolic function do not work with numpy.int64 arguments
> - #13386: comparison of Sage integer with Numpy integer
> - #15695: Coercion problems between numpy and sage floats
> - #17758: Intervals and numpy floats do not compare correctly
>
> We solve them all by defining coercions of numpy integers to `ZZ`, numpy
> floating to `RDF` and numpy complex floating to `CDF`.
>
> Some of them depend on modifying some internal in numpy and will not be
> solved here:
> - - #8824: Make it so that numpy datatypes are integrated into the
> coercion model
New description:
Plenty of bugs have been reported for the interaction with numpy:
- #8426: polynomial * constant does not work if constant is a numpy type
- #8949: symbolic functions dont work with numpy.int32
- #9769: symbolic function do not work with numpy.int64 arguments
- #13386: comparison of Sage integer with Numpy integer
- #15695: Coercion problems between numpy and sage floats
- #17758: Intervals and numpy floats do not compare correctly
- #17865: get rid of _native_coercion_ranks_inv and _native_coercion_ranks
We solve them all by defining coercions of numpy integers to `ZZ`, numpy
floating to `RDF` and numpy complex floating to `CDF`. Also, coercion
between numerical types (in `sage.structure.coerce`) are now done directly
via the addition.
Some of them depend on modifying some internal in numpy and will not be
solved here:
- #8824: Make it so that numpy datatypes are integrated into the coercion
model
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Comment:
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=f739d53004dd326ef6412dc4f0ec283e59970586
f739d53]||{{{Trac 18076: be nicer with numpy}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/18076#comment:2>
Sage <http://www.sagemath.org>
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