Status: Accepted
Owner: ----
Labels: Type-Enhancement Priority-Medium Concrete
New issue 3128 by [email protected]: Sum and Product manipulations
http://code.google.com/p/sympy/issues/detail?id=3128
In a similar vein to issue 2297, we should have functions to make it easy
to combine and generally manipulate summations and products. Examples
would be
- Addition of two sums with the same limits
- Addition of two sums with different limits (like Sum(i, (i, 0, k)) +
Sum(i, (i, k, m)))
- Change of index
- Product of Sums
- Reorder multiple sums or products
- Reverse order of limits
- The inverse of any of the above rules
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