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Description
var('n')
limit(harmonic_number(n)/n,n=+oo,algorithm='sympy')
gives zero, which isn't obtainable without it. There are more such examples - put lots of sympy limit stuff in, and perhaps not just under limit but e.g. under the definition of harmonic number. I'll point out that some of their documentation is pretty nice at e.g. http://docs.sympy.org/dev/modules/functions/combinatorial.html#harmonic
CC: @rwst
Component: calculus
Keywords: limit
Issue created by migration from https://trac.sagemath.org/ticket/22700