#16697: implement symbolic lower incomplete gamma function
-------------------------------------+-------------------------------------
Reporter: rws | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-pending
Component: symbolics | Resolution:
Keywords: gamma, | Merged in:
incomplete, special, functions | Reviewers: Buck Evan
Authors: Ralf Stephan | Work issues:
Report Upstream: N/A | Commit:
Branch: u/rws/16697-1 | f3be6f16908734f6c6e752578653a3ca09189011
Dependencies: sympy-0.7.7 | Stopgaps:
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Comment (by buck):
I did the full test with sympy-0.7.7, only after I got your new doctests
in functions.other passing.
I reproduced the combine-gamma-greek problem with sage -br, which I would
think should avoid any version-mismatch issues no? (Apparently the maxima
writer forgot that uppercase gamma is also greek?)
That said, I can't reproduce it anymore after merging your branch and
running another sage -br.
Should this not come out as gamma_inc_lower?
{{{
./sage -br
sage: maxima('gamma_greek(x, y)')
gamma_greek(x,y)
}}}
I do see that `_sage_` of the same expression yields gamma_inc_lower. I
suppose I don't know enough about the coersion going on here. I did try
looking in the docs but didn't find anything that helped me understand
this particular aspect.
{{{
sage: maxima('gamma_greek(x, y)')
gamma_greek(x,y)
sage: maxima('gamma_greek(x, y)')._sage_()
gamma_inc_lower(x, y)
sage: maxima('gamma_greek(x, y)').simplify()
simplify(gamma_greek(x,y))
sage: maxima('gamma_greek(x, y)')._sage_().simplify()
gamma_inc_lower(x, y)
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/16697#comment:56>
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