#12410: divergent alternating sum gives finite result
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Reporter: dkrenn | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-6.3
Component: calculus | Resolution:
Keywords: alternating sum divergent | Merged in:
result | Reviewers:
Authors: | Work issues:
Report Upstream: Reported upstream. No | Commit:
feedback yet. | Stopgaps:
Branch: |
Dependencies: |
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Comment (by tscrim):
In Sage 6.3.beta4 we have
{{{
sage: var('x')
x
sage: sum(1/x*(-1)^x, x, 0, oo)
#0: simp_gen_harmonic_number(exp__=1,x__=-1)
#1: ratfun_to_psi(ratfun=-1/(2*?g2728-2),var=?g2728,lo=1,hi=inf)
#2: simplify_sum(expr='sum((-1)^x/x,x,0,inf))
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call
last)
...
RuntimeError: ECL says: Error executing code in Maxima: Zero to negative
power computed.
}}}
So this is now throwing an error, although is it the right error, or is it
good enough for the purposes of this ticket?
--
Ticket URL: <http://trac.sagemath.org/ticket/12410#comment:7>
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