#16439: Allow inverse trig functions to all take complex input
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Reporter: kcrisman | Owner:
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-6.3
Component: symbolics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/ppurka/allow_inverse_trig_functions_to_all_take_complex_input|
c4ba30d802f932b29205ec3f49f3eeeeb0942e76
Dependencies: | Stopgaps:
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Comment (by kcrisman):
> so `atan` is exactly the same as `arctan` - one fix works for both!
(Though I haven't actually tried the branch.)
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I understand and approve of the changes for trig.py, pending verification
and messing around. But I don't quite get the changes in function.pyx.
In particular, it seems like there is too much stuff. If `org_parent is
float` then `return org_parent(RDF(res))` does nothing (or at least
nothing that wouldn't have happened with `float`, I hope). Why would that
be better than just converting to `float`? I'd go straight to trying the
`CDF` piece. Is there some specific case I'm not considering that would
make me think that?
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Ticket URL: <http://trac.sagemath.org/ticket/16439#comment:7>
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