#13646: Bug in p.add_constraint (when input is True/False)
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Reporter: ncohen | Owner: ncohen
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.5
Component: linear programming | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Nathann Cohen, Volker Braun | Merged in:
Dependencies: #12533 | Stopgaps:
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Comment (by vbraun):
I've also removed the deep copy, now naive addition is only about 2x
slower than using sum:
{{{
sage: P = MixedIntegerLinearProgram()
sage: x = P.new_variable(binary=True)
sage: %prun for i in [0..290]: c = sum(x[j]*(j-i) for j in [0..290])
99278 function calls in 1.681 seconds
sage: %prun for i in [0..290]: c = P.sum(x[j]*(j-i) for j in [0..290])
98405 function calls in 0.928 seconds
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13646#comment:17>
Sage <http://www.sagemath.org>
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