On 17 led, 16:51, Francois Maltey <fmal...@nerim.fr> wrote:
> Hello Jean-Pierre,> It would be nice to add an option to set Maxima simpsum 
> option when
> > calling Sage symbolic_sum function, or to enable it by default.
> > Indeed, without it Maxima (and so Sage) does not evaluate symbolic
> > sums of sums, i.e. something as
> > sage: var('n')
> > n
> > sage: sum(2^x+2^-x,x,0,n)
> > sum((2^(2*x) + 1)/2^x, x, 0, n)
>
> It's a fine idea to improve the Maxima interface to Sage.

Relevant patch could be http://trac.sagemath.org/sage_trac/ticket/8174
.

Robert

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