#20354: PPLBackend: Add support for integer variables
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Reporter: mkoeppe | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.2
Component: numerical | Resolution:
Keywords: lp | Merged in:
Authors: Matthias Koeppe | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/mkoeppe/pplbackend__add_support_for_integer_variables|
144a970ae97b209acccf6d38de540401c8c8a587
Dependencies: #20351,#20303 | Stopgaps:
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Comment (by mkoeppe):
Replying to [comment:5 dimpase]:
> hmm:
> {{{
> cpdef int add_variable(self, lower_bound=0, upper_bound=None,
binary=False, continuous=False, integer=False, obj=0, name=None) except
-1:
> }}}
> should we really pick a default (`continuous` seems to be the most
natural) rather than being it total denial?
This idiosyncratic interface (including the documentation that says that
the default value of 'continuous' is True) matches that of the other
backends.
I would probably express this by making all arglist-default `None` to
indicate complicated defaulting semantics. But it's not the job of this
ticket to make changes throughout all backends.
--
Ticket URL: <http://trac.sagemath.org/ticket/20354#comment:6>
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