levin versus ratsum

• Subject: levin versus ratsum
• From: miguel lopez
• Date: Fri, 29 Dec 2006 14:10:30 +0000 (UTC)

 Hello.

  Levin in a bit  more accurate than ratsum, but ratsum can make some 
symbolic sums like

 sum(1/(n^2+x),n,1,inf)

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