#16587: f(expr).n() fails for all generalized functions
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Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: symbolics | Resolution:
Keywords: sgn, evaluation | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/rws/f_expr__n___fails_for_all_generalized_functions|
cc22a9b489a841b23a6e9455bfea80a0b423c0e1
Dependencies: #17130, #17285 | Stopgaps:
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Comment (by rws):
Replying to [comment:4 jdemeyer]:
> Isn't the problem simply that these functions are missing an `_evalf_()`
method?
To finally answer this, no, it will still trigger the exception with `M =
sgn((3/2),hold=True); M.n()` and with `M = sgn(cos(3/2)); M.n()`.
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Ticket URL: <http://trac.sagemath.org/ticket/16587#comment:18>
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