#15138: BuiltinFunction._is_registered is giving false negatives
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Reporter: ohanar | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.12
Component: symbolics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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This is easily encountered by the following:
{{{
#!python
sage: loads(dumps(sin)) == sin # derives from GinacFunction
True
sage: loads(dumps(cot)) == cot # should also be True
False
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/15138>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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