#9634: binomial does not accept variable when only in the lower argument
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Reporter: Henryk.Trappmann | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone:
Component: basic arithmetic | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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{{{
sage: var('k')
k
sage: binomial(x,3)
1/6*(x - 2)*(x - 1)*x
sage: binomial(3,k)
---------------------------------------------------------------------------
TypeError: Either m or x-m must be an integer
}}}
From kcrisman:
Is this a bug? I would say yes, because
{{{
sage: binomial(x,k)
binomial(x, k)
}}}
works, but maybe we want to have it be a specific integer if the top
number is given? Any input?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9634>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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