#2516: generalized hypergeometric functions should be implemented
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Reporter: ddrake | Owner: cwitty
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.2
Component: symbolics | Resolution:
Keywords: hypergeometric | Merged in:
Authors: Fredrik | Reviewers: Ralf Stephan
Johansson, Eviatar Bach, Ralf | Work issues:
Stephan | Commit:
Report Upstream: N/A | 9553ba95b5a901428f1b191bb92232038b68c50e
Branch: | Stopgaps:
u/rws/generalized_hypergeometric_functions_should_be_implemented|
Dependencies: #14858 #14780 |
#9556 #14802 |
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Comment (by rws):
Replying to [comment:17 eviatarbach]:
> It's something in the `fast_callable` implementation if I recall
correctly, but I couldn't figure out how to fix it at the time.
What's certain is that `Wrapper_cdf.__call__()` gets the same arguments as
with other working examples but that `SR._call_element_()` gets called
where the deprecation warning happens while with `exp_integral_e(x,1)` its
`_eval_()` is called directly.
> Another strange doctest failure is the one in `_fast_callable_`; when I
run it from interactive mode I get
`{CommutativeRings.element_class}(v_0)`, but the doctest returns
`{Fields.element_class}(v_0)`. Why is that?
Interestingly if use `h=exp_integral_e(x,1)` in the same doctest, I get
{{{
sage: h._fast_callable_(etb)
{exp_integral_e}(v_0, 1)
}}}
So why is it not `hypergeometric(None, None, v_0)` or similar in the
doctest?
--
Ticket URL: <http://trac.sagemath.org/ticket/2516#comment:30>
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