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Question regarding expressions with Sum[...]

  • To: mathgroup at
  • Subject: [mg7792] Question regarding expressions with Sum[...]
  • From: Thomas Koerner <koerner at>
  • Date: Tue, 8 Jul 1997 22:41:07 -0400
  • Organization: Swiss Federal Institute of Technology (ETHZ)
  • Sender: owner-wri-mathgroup at

I just started working with mathematica, and there is one thing I could
not figure out yet ...

Suppose I want to compute 

  Sum[a[i],{i,0,n+1}] - Sum[a[i],{i,0,n}]

with a[i] a series that I do not want to define in more detail.
Is there a way of obtaining 


as the result ???

Thomas Koerner, Dipl.-Phys.

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