#3587: [with patch, needs review] calculus -- wrap maxima's symbolic summation
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Reporter: was |
Owner: whuss
Type: enhancement |
Status: assigned
Priority: major |
Milestone: sage-4.1.2
Component: calculus |
Keywords:
Reviewer: Burcin Erocal, Mike Hansen, Karl-Dieter Crisman, William Stein |
Author: Wilfried Huss
Merged: |
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Old description:
> Maxima has good symbolic summation and it would be easy to wrap in the
> calculus package.
> We are constantly getting stuff like this:
> {{{
> 02:53 < nagyv> hello! how can I represent a summation in sage? like
> sum_{x=1}^N x, I would like to take the limit as N goes to infinity
> 03:02 < nagyv> what the heck is this? maxima.sum(1/x, x, 1, 2*N) gives
> 2*N/x! why?
> }}}
>
> Probably the only reason that this hasn't been done yet is the calculus
> rewrite by gfurnish.
> That is *not* a good enough reason, and don't worry, the work won't be
> lost.
New description:
Maxima has good symbolic summation and it would be easy to wrap in the
calculus package.
We are constantly getting stuff like this:
{{{
02:53 < nagyv> hello! how can I represent a summation in sage? like
sum_{x=1}^N x, I would like to take the limit as N goes to infinity
03:02 < nagyv> what the heck is this? maxima.sum(1/x, x, 1, 2*N) gives
2*N/x! why?
}}}
Probably the only reason that this hasn't been done yet is the calculus
rewrite by gfurnish.
That is *not* a good enough reason, and don't worry, the work won't be
lost.
--
Comment(by kcrisman):
Great, I'll do that as well.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/3587#comment:22>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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