Re: How to simplify SUM(k=0,inf,x^k/k!) ? Message #2 Posted by Crawl on 11 Oct 2006, 10:29 p.m., in response to message #1 by Marcus von Cube, Germany
I don't think the 49G+ can do it.
It can at least find sum(n = 1, inf, 1/n^x) for even x.
And it can find various closed forms of finite sums (the geometric series, 1 + 2 + 3 + ... + n = n(n+1)/2, sums of reciprocal triangle numbers, more complicated cases), too.
