#17123: Extending binomial(n,k) to negative integers n, k.
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Reporter: pluschny | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: sage-6.4
Component: combinatorics | Resolution:
Keywords: binomial | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by vbraun):
I know that there is a learning curve, but once you figure it out it is a
very efficient workflow. So what I'm trying to say is: Its worthwhile to
figure out how to use git.
`_eval_` and `_evalf_` punt to either `_binomial_sym` (for symbolic
expressions) or `sage.rings.arith.binomial` (for numbers), so both of the
latter need to be changed.
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Ticket URL: <http://trac.sagemath.org/ticket/17123#comment:8>
Sage <http://www.sagemath.org>
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