#16697: implement symbolic lower incomplete gamma function
-------------------------------------+-------------------------------------
Reporter: rws | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.3
Component: symbolics | Resolution:
Keywords: gamma, | Merged in:
incomplete, special, functions | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | d8d7ee29d7d0f8cf9f884c4403fe5c36cdf3336d
u/rws/implement_symbolic_lower_incomplete_gamma_function| Stopgaps:
Dependencies: |
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Comment (by nbruin):
Replying to [comment:14 rws]:
> That gives:
> {{{
> sage: (incomplete_gamma(x,y).diff(x)).simplify()
> D[0](gamma)(x, y)
> }}}
Cool! so it IS easy. Be sure to also test (I haven't checked the answer is
correct, but at least it shouldn't raise an error):
{{{
sage: (incomplete_gamma(x,x+1).diff(x)).simplify().simplify()
-(x + 1)^(x - 1)*e^(-x - 1) + D[0](gamma)(x, x + 1)
}}}
to check that both occurrences of `f.name()` have been replaced. I check
the rest of that file and didn't find any further suspicious uses of
`name` so after this, our maxima interface is probably perfect :-).
--
Ticket URL: <http://trac.sagemath.org/ticket/16697#comment:15>
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