On Wed, 11 Mar 2020 at 16:58, Aaron Meurer <[email protected]> wrote: > > The convention used is actually related to the Karr algorithm, in that > it is based on the conventions defined in his paper > https://docs.sympy.org/latest/modules/concrete.html#sympy.concrete.summations.Sum. > It relates to the way so-called indefinite summations work, which are > an important part of the algorithm.
That might be what it says in the docstring but Sum clearly does not actually use that convention: In [6]: Sum(f(n), (n, 1, 4)).doit() Out[6]: f(1) + f(2) + f(3) + f(4) -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAHVvXxShNbxx-N5UGd3OXRAXaeLLRgNtGc6syagpPKw6ZXuwOg%40mail.gmail.com.
