#13869: Gamma of complex numbers incorrectly simplifies to factorial
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Reporter: JoalHeagney | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-5.6
Component: symbolics | Resolution:
Keywords: gamma, simplify_full | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by kcrisman):
> Would it be possible to change the simplification code to use makegamma
instead?
I don't see any reason why not. If we start using Maxima code more like
it's meant to be, that is a good thing, as long as we can keep as many
simplifications as possible working.
> I don't know if we want gamma_expand to be true all the time, but it
does seem to give another level of simplification, pulling out i(i+1) in
my second example.
The standard thing we do is make another `simplify_blah` function and then
add that to `simplify_full`. Heck, why not add those other expand things
too eventually... we might want to wait until the stuff for symbolic
hypergeometric and bessels is in first for those, though :-)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13869#comment:8>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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