Hi,
> but can you give me some reference to this? I think I pointed you to some references in the last mail. Titles of some more or less important literature on the topic: Summation in Finite Terms Theory of Summation in Finite Terms Algebraic Extensions for Summation in Finite Terms A Refined Difference Field Theory for Symbolic Summation An Implementation of Karr's Summation Algorithm in Mathematica Product Representations in ΠΣ-Fields Simplifying Sums in ΠΣ-Extensions Solving Parameterized Linear Difference Equations in ΠΣ-Fields Symbolic Summation with Single-Nested Sum Extensions Structural theorems for symbolic summation Symbolic Summation in Difference Fields The Summation Package Sigma: Underlying Principles and a Rhombus Tiling Application Just search for these articles, you should be able to find most of them online. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/53166c1f.42dc0e0a.12c0.ffff8e4eSMTPIN_ADDED_BROKEN%40gmr-mx.google.com. For more options, visit https://groups.google.com/groups/opt_out.
