limit problem

[Martin R]

I am slightly surprised, was the following always the case?

sage: assume(n, "integer")

sage: limit(1/(1+n*(-1)^n), n=oo)
und

Martin

[Eric Gourgoulhon]

No, there has been some change between Sage 10.4 and 10.5: in Sage 10.4, the returned value is 1 (!), while in Sage 10.5 and higher it is "und", which is an incorrect as 1.  

Eric.