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Question: simplify a summation function

Question:simplify a summation function

dryder 5 Maple
sum
March 09 2012
1

Is there a simple way to have Maple re-formulate an expression like:

  r^2 * sum(A(j)*r^(n+j))

to :

  sum(A(j)*r^(n+j+2)

 

simplity, collect doesn't seem to do it.

Is there a simple function, or does one have to revert to the subsop procesure reported in a 2008 post.

 


Thanks.
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