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NSum: badly missed Option

  • To: mathgroup at
  • Subject: [mg56831] NSum: badly missed Option
  • From: "Alan" <info at>
  • Date: Sat, 7 May 2005 04:16:47 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

I just had occasion to use NSum with a summation from n = 1 to Infinity.

Works well except that I am getting this well-known complaint from
NIntegrate (which is used in the summation method):

     "NIntegrate::ncvb: NIntegrate failed to converge to prescribed accuracy
     after 7 recursive bisections in x"

The problem is that the usual fix for this, boosting MaxRecursion,
can't be used because MaxRecursion is *not an option* for NSum.

Shouldn't this standard NIntegrate option be available here?


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