[sage-devel] Re: Request to extend the binomial function by the reflection formula

2016-04-04 Thread Kiran Kedlaya
I haven't thought about this carefully enough to have an opinion yet. But definitely -1 to the status quo! If we don't implement binomial(n, k) in a mathematically meaningful way for k < 0, it would be better to raise a ValueError rather than silently returning 0. Kiran On Sunday, April 3, 201

[sage-devel] Re: Request to extend the binomial function by the reflection formula

2016-04-03 Thread Samuel Lelievre
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