[Maxima] Summation question

[Stavros Macrakis]

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Is there any (good) reason that nusum and GosperSum don't handle
sum(...,i,inf)?  No reason for the core logic to understand what's going on,
but why not perform sum(...,i,gensym) then if it's a nounform, subst
gensym=inf, else return limit( ... , gensym, inf).

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Is there any (good) reason that nusum and GosperSum don't handle sum(...,i,inf)?  No reason for the core logic to understand what's going on, but why not perform sum(...,i,gensym) then if it's a nounform, subst gensym=inf, else return limit( ... , gensym, inf).
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